Hensher, D., Shore, N. and Train, K. (2006) Water Supply Security and Willingness to Pay to Avoid Drought Restrictions. Economic Record, 82, 56-66.
 Hulland, K., Martin, N., Dreibelbis, R., DeBruicker, V.J. and Winch, P. (2015) What Factors Affect Sustained Adoption of Safe Water, Hygiene and Sanitation Technologies? A Systematic Review of Literature. EPPI-Centre, Social Science Research Unit, UCL Institute of Education, University College, London.
 Dolnicar, S. and Schäfer, A.I. (2009) Desalinated versus Recycled Water: Public Perceptions and Profiles of the Accepters. Journal of Environmental Management, 90, 888-900.
 Funamizu, N., Onitsuka, T. and Hatori, S. (2008) Water Reuse in Japan. In: Jimenez, B. and Asano, T., Eds., Water Reuse. An International Survey of Current Practice, Issues and Needs, Science and Technological Report No. 20, IWA Publishing, London, 377-386.
 Pond, K. and Pedley, S. (2011) Current Situation in Access to Drinking Water. In: Cameron, J., Ed., Valuing Water, Valuing Livelihoods: Guidance on Social Cost Benefit Analysis of Drinking-Water Interventions, with Special Reference to Small Community Water Supplies, IWA Publishing, London, 55-74.
 Ojomo, E., Elliott, M., Goodyear, L., Forson, M. and Bartram, J. (2015) Sustainability and Scale-Up of Household Water Treatment and Safe Storage Practices: Enablers and Barriers to Effective Implementation. International Journal of Hygiene and Environmental Health, 218, 704-713.
 Ochungo, et al. (2018) Water Supply Security in a Drought Exposed Nairobi: Adopting a Blockchain Provenance Tracking for Informal Alternatives. International Journal of Innovative Research in Science, Engineering and Technology, 7, 10475-10483.
 Toivanen, T., Koponen, S., Kotovirta, V., Molinier, M. and Peng, C. (2013) Water Quality Analysis Using an Inexpensive Device and a Mobile Phone. Environmental Systems Research, 2, 9.
 Alfonso, L. (2006) Use of Hydroinformatics Technologies for Real Time Water Quality Management and Operation of Distribution Networks. Case Study of Villavicencio, Colombia. M.Sc. Thesis, UNESCO-IHE, Delft.
 Hensher, D.A., Shore, N. and Train, K. (2005) Households’ Willingness to Pay for Water Service Attributes. Environmental and Resource Economics, 32, 509-531.
 Vasquez, W.F., Mozumder, P., Hernandez-Arce, J. and Berrens, R.P. (2009) Willingness to Pay for Safe Drinking Water: Evidence from Parral Mexico. Journal of Environmental Management, 90, 3391-3400.
 Glasgow, H. (2004) Real-Time Remote Monitoring of Water Quality: A Review of Current Applications, and Advancements in Sensor, Telemetry, and Computing Technologies. Journal of Experimental Marine Biology and Ecology, 300, 409-448.
 Champanis, M. and Rivett, U. (2012) Reporting Water Quality: A Case Study of a Mobile Phone Application for Collecting Data in Developing Countries. Proceedings of the Fifth International Conference on Information and Communication Technologies and Development, Atlanta, 12-15 March 2012, 105-114.
 Thomson, P., Hope, R. and Foster, T. (2012) GSM-Enabled Remote Monitoring of Rural Handpumps: A Proof-of-Concept Study. Journal of Hydroinformatics, 14, 829-839.
 Lama, J.P. and Khatri, G.R. (2014) Akvo FLOW in Nepal: Real Time Monitoring of WASH Services. Sustainable Water and Sanitation Services for All in a Fast Changing World: Proceedings of the 37th WEDC International Conference, Hanoi, Vietnam, 15-19 September 2014, 5 p.
 Pepper, I.L., Rusin, P., Quintanar, D.R., Haney, C., Josephson, K.L. and Gerba, C.P. (2004) Tracking the Concentration of Heterotrophic Plate Count Bacteria from the Source to the Consumer’s Tap. International Journal of Food Microbiology, 92, 289-295.
 Chaudhri, R., Sodt, R., Lieberg, K., Chilton, J., Borriello, G., Masuda, Y.J. and Cook, J. (2012) Sensors and Smartphones: Tracking Water Collection in Rural Ethiopia. Technologies for Development, Seattle.
 Nel, P.J.C., Booysen, M.J. and Van Der Merwe, B. (2014) ICT-Enabled Solutions for Smart Management of Water Supply in Africa. Proceeding of the 1st International Conference on the Use of Mobile ICT in Africa, Stellenbosch, 9-10 December 2014, 40-44.
 Hutchings, M., Dev, A., Palaniappan, M., Srinivasan, V., Ramanathan, N. and Taylor, J. (2012) mWASH: Mobile Phone Applications for the Water, Sanitation, and Hygiene Sector. Pacific Institute and Nextleaf Analytics, Oakland.
 Foster, T., Hope, R., Thomas, M., Cohen, I., Krolikowski, A. and Nyaga, C. (2012) Impacts and Implications of Mobile Water Payments in East Africa. Water International, 37, 788-804.
 Fjeldsoe, B.S., Marshall, A.L. and Miller, Y.D. (2009) Behavior Change Interventions Delivered by Mobile Telephone Short-Message Service. American Journal of Preventive Medicine, 36, 165-173.
 Yasar, A., Khan, N.Y., Batool, A., Tabinda, A.B., Mehmood, R. and Iqbal, A. (2011) Women Perception of Water Quality and Its Impact on Health in Gangapur, Pakistan. Pakistan Journal of Nutrition, 10, 702-706.
 Brouwer, R., Job, F.C., van der Kroon, B. and Johnston, R. (2014) Comparing Willingness to Pay for Improved Drinking-Water Quality Using Stated Preference Methods in Rural and Urban Kenya. Applied Health Economics and Health Policy, 13, 81-94.
 Abou-Ali, H. and Carlsson, F. (2004) Evaluating the Welfare Effects of Improved Water Quality Using the Choice Experiment Method. Working Papers in Economics 131, Göteborg University, Department of Economics, Göteborg.
 Lemmens, R.L.G., Lungo, J., Georgiadou, P.Y. and Verplanke, J.J. (2017) Monitoring Rural Water Points in Tanzania with Mobile Phones: The Evolution of the SEMA App. ISPRS International Journal of Geo-Information, 6, 316.
 Kumpel, E., Peletz, R., Bonham, M., Fay, A., Cock-Esteb, A. and Khush, R. (2015) When Are Mobile Phones Useful for Water Quality Data Collection? An Analysis of Data Flows and ICT Applications among Regulated Monitoring Institutions in Sub-Saharan Africa. International Journal of Environmental Research and Public Health, 12, 10846-10860.
 Tuna, G., Arko, O. and Gulez, K. (2013) Continuous Monitoring of Water Quality Using Portable and Low-Cost Approaches. International Journal of Distributed Sensor Networks, 2013, Article ID: 249598.
 Adamowicz, W.L., Louviere, J. and Williams, M. (1994) Combining Stated and Revealed Preference Methods for Valuing Environmental Amenities. Journal of Environmental Economics and Management, 26, 271-292.
 Hanley, N., Wright, R.E. and Adamowicz, V. (1998) Using Choice Experiments to Value the Environment: Design Issues, Current Experience and Future Prospects. Environmental and Resource Economics, 11, 413-428.
 Brouwer, R. (2008) The Potential Role of Stated Preference Methods in the Water Framework Directive to Assess Disproportionate Costs. Journal of Environmental Planning and Management, 51, 597-614.
 Katayama, A., Liu, X., Musharrafiyeh, H., et al. (2009) Understanding Farmers’ Preferences for Water Policy Design: An Application of Choice Experiment to Portugal-Guadiana River Basin. In: The Use of Economic Valuation in Environmental Policy: Providing Research Support for the Implementation of EU Water Policy under Aqua Stress, Routledge, London, New York, 47-78.
 Day, B., Bateman, I.J., Carson, R.T., Dupont, D., Louviere, J.J., Morimoto, S., Scarpa, R. and Wang, P. (2012) Ordering Effects and Choice Set Awareness in Repeat-Response Stated Preference Studies. Journal of Environmental Economics and Management, 63, 73-91.
 Davis, K.J., Burton, M. and Kragt, M.E. (2016) Discrete Choice Models: Scale Heterogeneity and Why It Matters. Working Paper 1602, School of Agricultural and Resource Economics, University of Western Australia, Crawley.
 Genius, M., Hatzaki, E., Kouromichelaki, E.M., Kouvakis, G., Nikiforaki, S. and Tsagarakis, K.P. (2008) Evaluating Consumers’ Willingness to Pay for Improved Potable Water Quality and Quantity. Water Resources Management, 22, 1825-1834.
 Kwak, S.-J. and Russell, C. (1994) Contingent Valuation in Korean Environmental Planning: A Pilot Application to the Protection of Drinking Water Quality in Seoul. Environmental and Resource Economics, 4, 511-526.
 Arrow, K., Solow, R., Portney, P., Leamer, E., Radner, R. and Schuman, H. (1998) Report of the NOAA Panel on Contingent Valuation 2003. National Oceanic and Atmospheric Administration, Damage Assessment and Restoration Program, Silver Spring.
 Kwak, S.-Y., Yoo, S.-H. and Kim, C.-S. (2013) Measuring the Willingness to Pay for Tap Water Quality Improvements: Results of a Contingent Valuation Survey in Pusan. Water, 5, 1638-1652.
 Clark, M.D., Determann, D., Petrou, S., Moro, D. and de Bekker-Grob, E.W. (2014) Discrete Choice Experiments in Health Economics: A Review of the Literature. Pharmaco Economics, 32, 883-902.
 McFadden, D. (1986) The Choice Theory Approach to Market Research. Marketing Science, 5, 275-297.
 Hammitt, J.K. and Herrera-Araujo, D. (2017) Peeling Back the Onion: Using Latent Class Analysis to Uncover Heterogenous Responses to Stated Preference Surveys. Journal of Environmental Economics and Management, 75, 41-53.
 Hrudey, S.E. (2004) Drinking-Water Risk Management Principles for a Total Quality Management Framework. Journal of Toxicology and Environmental Health Part A, 67, 1555-1566.
 Jalba, D.I., Cromar, N.J., Pollard, S.J.T., Charrois, J.W., Bradshaw, R. and Hrudey, S.E. (2014) Effective Drinking Water Collaborations Are Not Accidental: Interagency Relationships in the International Water Utility Sector. Science of the Total Environment, 470-471, 934-944.
 O’Flynn, B., Martinez, R., Cleary, J., Murphy, H., Regan, F., O’Mathuna, C. and Diamond, D. (2007) Smart Coast: A Wireless Sensor Network for Water Quality Monitoring. 2nd IEEE International Workshop on Practical Issues in Building Sensor Network Applications, Dublin, 15-18 October 2007, 815-816.
 Alkandari, A., alnasheet, M., Alabduljader, Y. and Moein, S.M. (2012) Water Monitoring System Using Wireless Sensor Network (WSN, Case Study of Kuwait Beaches). 2nd International Conference on Digital Information Processing and Communications, Lithuania, 10-12 July 2012, 709-717.
 Pule, M., Yahya, A. and Chuma, J. (2017) Wireless Sensor Networks: A Survey on Monitoring Water Quality. Journal of Applied Research and Technology, 15, 562-570.
 Adu-Manu, K.S., Tapparello, C., Heinzelman, W., Katsriku, F.A. and Abdulai, J.-D. (2017) Water Quality Monitoring Using Wireless Sensor Networks: Current Trends and Future Research Directions. ACM Transactions on Sensor Networks, 13, Article No. 4.
 Sui, D.Z., Elwood, S. and Goodchild, M.F. (2012) Crowdsourcing Geographic Knowledge: Volunteered Geographic Information (VGI) in Theory and Practice. Springer, New York.
 Mloza-Banda, C. and Scholtz, B. (2018) Crowdsensing for Successful Water Resource Monitoring: An Analysis of Citizens’ Intentions AND Motivations. Proceedings of the Annual Conference of the South African Institute of Computer Scientists and Information Technologists, Port Elizabeth, 26-28 September 2018, 55-64.
 Lovett, G.M., Burns, D.A., Driscoll, C.T., Jenkins, J.C., Mitchell, M.J., Rustad, L., Haeuber, R., et al. (2007) Who Needs Environmental Monitoring? Frontiers in Ecology and the Environment, 5, 253-260.
 Cook, S., Sharma, A.K. and Gurung, T.R. (2014) Evaluation of Alternative Water Sources for Commercial Buildings: A Case Study in Brisbane, Australia. Resources, Conservation and Recycling, 89, 86-93.
 Whittington, D., Lauria, D.J. and Mu, X. (1991) A Study of Water Vending and Willingness to Pay for Water in Onitsha, Nigeria. World Development, 19, 179-198.
 Storey, M.V., van der Gaag, B. and Burns, B.P. (2011) Advances in On-Line Drinking Water Quality Monitoring and Early Warning Systems. Water Research, 45, 741-747.
 Brown, D., Marsden, G. and Rivett, U. (2012) WATER Alert! Using Mobile Phones to Improve Community Perspective on Drinking Water Quality in South Africa. In: Proceedings of the Fifth International Conference on Information and Communication Technologies and Development, ACM Press, New York, 230-240.
 Lovei, L. and Whittington, D. (1993) Rent-Extracting Behavior by Multiple Agents in the Provision of Municipal Water Supply: A Study of Jakarta, Indonesia. Water Resources Research, 29, 1965-1974.
 Peletz, R., Kisiangani, J., Bonham, M., Ronoh, P., Delaire, C., Kumpel, E., Khush, R., et al. (2018) Why Do Water Quality Monitoring Programs Succeed or Fail? A Qualitative Comparative Analysis of Regulated Testing Systems in Sub-Saharan Africa. International Journal of Hygiene and Environmental Health, 221, 907-920.
 Rolfe, J. and Bennett, J. (2009) The Impact of Offering Two versus Three Alternatives in Choice Modelling Experiments. Ecological Economics, 68, 1140-1148.
 Millock, K. and Nauges, C. (2010) Household Adoption of Water-Efficient Equipment: The Role of Socio-Economic Factors, Environmental Attitudes and Policy. Environmental and Resource Economics, 46, 539-565.
 Francis, M., Nagarajan, G., Sarkar, R., Mohan, V., Kang, G. and Balraj, V. (2015) Perception of Drinking Water Safety and Factors Influencing Acceptance and Sustainability of a Water Quality Intervention in Rural Southern India. BMC Public Health, 15, Article No. 731.
 Lilje, J., Kessely, H. and Mosler, H.-J. (2015) Factors Determining Water Treatment Behavior for the Prevention of Cholera in Chad. The American Journal of Tropical Medicine and Hygiene, 93, 57-65.
 Czajkowski, M., Giergiczny, M. and Zawojska, E. (2018) Valuing Tap Water Quality Improvements Using Stated Preference Methods: Does the Number of Discrete Choice Alternatives Matter? Agricultural and Applied Economics Association Annual Meeting, Washington DC, 5-7 August 2018.
 Tapsuwan, et al. (2014) Adapting to Less Water: Household Willingness to Pay for Decentralised Water Systems in Urban Australia. Water Resources Management, 28, 1111-1125.
 Latinopoulos, D. (2014) Using a Choice Experiment to Estimate the Social Benefits from Improved Water Supply Services. Journal of Integrative Environmental Sciences, 11, 187-204.
 DuBois, A.E., Crump, J.A., Keswick, B.H., Slutsker, L., Quick, R.E., Vulule, J.M. and Luby, S.P. (2010) Determinants of Use of Household-Level Water Chlorination Products in Rural Kenya, 2003-2005. International Journal of Environmental Research and Public Health, 7, 3842-3852.
 Albert, J., Luoto, J. and Levine, D. (2010) End-User Preferences for and Performance of Competing POU Water Treatment Technologies among the Rural Poor of Kenya. Environmental Science & Technology, 44, 4426-4432.
 Hasler, B., Lundhede, T., Martinsen, L., Neye, S. and Schou, J.S. (2005) Valuation of Groundwater Protection versus Water Treatment in Denmark by Choice Experiments and Contingent Valuation. National Environmental Research Institute, Denmark, NERI Technical Report No. 543, 176.
 Scarpa, R. and Rose, J.M. (2008) Design Efficiency for Non-Market Valuation with Choice Modelling: How to Measure It, What to Report and Why. Australian Journal of Agricultural and Resource Economics, 52, 253-282.
 Powe, N.A., Garrod, G.D., McMahon, P.L. and Willis, K.G. (2004) Assessing Customer Preferences for Water Supply Options Using Mixed Methodology Choice Experiments. Water Policy, 6, 427-441.
 Hatton MacDonald, D., Lamontagne, S. and Connor, H. (2005) The Economics of Water: Taking Full Account of First Use, Reuse and the Return to the Environment. Irrigation and Drainage, 54, S93-S102.
 Smithers, et al. (2017) Improving Willingness-to-Pay Research in the Water Sector. ICF Consulting Limited, London.
 Meyerhoff, J. and Liebe, U. (2009) Status Quo Effect in Choice Experiments: Empirical Evidence on Attitudes and Choice Task Complexity. Land Economics, 85, 515-528.
 Boxall, P., Adamowicz, W.L.V. and Moon, A. (2009) Complexity in Choice Experiments: Choice of the Status Quo Alternative and Implications for Welfare Measurement. Australian Journal of Agricultural and Resource Economics, 53, 503-519.
 Lanz, B. and Provins, A. (2015) Using Discrete Choice Experiments to Regulate the Provision of Water Services: Do Status Quo Choices Reflect Preferences? Journal of Regulatory Economics, 47, 300-324.
 Hanley, N., Mourato, S. and Wright, R.E. (2001) Choice Modelling Approaches: A Superior Alternative for Environmental Valuation? Journal of Economic Surveys, 15, 435-462.
 Willis, K., Scarpa, R. and Acutt, M. (2005) Assessing Water Company Customer Preferences and Willingness to Pay for Service Improvements: A Stated Choice Analysis. Water Resources Research, 41, W02019.
 Yoshida, K. (2009) Estimating Willingness to Pay for Drinking Water Quality Using Averting Expenditures and Choice Experiments. 17th Annual Conference of the European Association of Environmental and Resource Economists, Amsterdam, 24-27 June 2009.
 Chakava, Y., Franceys, R. and Parker, A. (2014) Private Boreholes for Nairobi’s Urban Poor: The Stop-Gap or the Solution? Habitat International, 43, 108-116.
 McCutcheon, A. (1987) Latent Class Analysis. Quantitative Applications in the Social Sciences Series. Sage Publications, Newbury Park, London, and New Delhi.
 Lazarova, V., Sturny, V. and Sang, G.T. (2012) The Role of the Community Engagement towards the Success of Water Reuse in Isolated Islands and Tourist Areas. Journal of Water Reuse and Desalination, 2, 1-12.
 Singh, A.S. and Masuku, M.B. (2014) Sampling Techniques and Determination of Sample Size in Applied Statistics Research: An Overview. International Journal of Economics, Commerce and Management, 2, 1-22.