Arthur, M. A. (2011). Development of Action Competence Using Education for Sustainability in a New Zealand School. Unpublished MSc. Thesis, Hamilton: University of Waikato.
 Calder, W., & Clugston, R. M. (2003). International Efforts to Promote Higher Education for Sustainable Development. Planning for Higher Education, 31, 30-44.
 Chu, H. E., Lee, E. A., Ko, H. R., Shin, D. H., Lee, M. N., Min, B. M., & Kang, K. H. (2007). Korean Year 3 Children’s Environmental Literacy: A Prerequisite for a Korean Environmental Education Curriculum. International Journal of Science Education, 29, 731-746.
 Connell, S. (1997). Empirical-Analytical Methodological Research in Environmental Education: Response to a Negative Trend in Methodological and Ideological Discussions. Environmental Education Research, 3, 117-132. http://dx.doi.org/10.1080/1350462970030202
 Creswell, J. W. (2009). Research Design. Quantitative, Qualitative and Mixed Approaches (3rd ed.). London: SAGE.
 Dourish, P. (2008). Points of Persuasion: Strategic Essentialism and Environmental Sustainability. Donald Bren School of Information and Computer Sciences University of California, Irvine.http://forum.pervasive2008.org/Papers/Workshop/w2-05.pdf
 Fien, J. (2000). Education for the Environment: A Critique—An Analysis. Environmental Education Research, 6, 179-192. http://dx.doi.org/10.1080/713664671
 Fien, J. (1999). Towards a Map of Commitment: A Socially Critical Approach to Geographical Education. International Research in Geographical and Environmental Education, 8, 140-158. http://dx.doi.org/10.1080/10382049908667602
 Government of the Republic of Namibia (1992). NAMIBIA’S GREEN PLAN, (Environment and Development) Namibia’s Green Plan to Secure Present and Future Generations of a Safe and Healthy Environment and a Prosperous Economy. Windhoek: Ministry of Wildlife, Conservation and Tourism.
 Hart, P. (2003). Reflections on Reviewing Educational Research: (Re)searching for Value in Environmental Education. Environmental Education Research, 9, 241-256. http://dx.doi.org/10.1080/13504620303479
 James, A. A., Milenkiewicz, M. T., & Buckman, A. (2008). Participatory Research for Educational Leadership. Using Data-Driven Decision Making to Improve Schools. London: SAGE Publications. http://dx.doi.org/10.4135/9781483329369
 Kindon, S., Pain, R., & Kesby, M. (2009). Participatory Action Research. Origins, Approaches and Methods. In S. Kindon, R. Pain, & M. Kesby (Eds.), Participatory Action Research Approaches and Methods. Connecting People, Participation and Place (pp. 9-19). London: Routledge.
 Kristensen, J. O. (1999). An Evaluation of the Life Science Curriculum in Namibia and Its Development through Stakeholders’ Perceptions of Learner-Centred Education. Unpublished Med. Thesis, Rhodes: Rhodes University.
 Le Grange, L. (2004). Embodiment, Social Praxis and Environmental Education: Some Thoughts. Environmental Education Research, 10, 387-399. http://dx.doi.org/10.1080/1350462042000258206
 Le Grange, L. (2002). Towards a “Language of Probability” for Environmental Education in South Africa. South African Journal of Education, 22, 83-87.
 Marcinkowski, T. (2001). Predictors of Responsible Environmental Behavior: A Review of Three Dissertation Studies. In H. Hungerford (Ed.), Essential Readings in Environmental Education. Champaign, IL: Stipes Publishing.
 McKeown, R., & Hopkins, C. (2005). EE and ESD: Two Paradigms, One Crucial Goal. Applied Environmental Education and Communication, 4, 221-224. http://dx.doi.org/10.1080/15330150591004616
 Ministry of Education (2009). The National Curriculum for Basic Education. Okahandja: National Institute of Education Development.
 Ministry of Environment and Tourism (n.d.). Some Basic Lesson Learnt and Hands on Guidelines for Implementation and Application, National Capacity Self-Assessment (NCSA) for Global Environmental Management. Windhoek: Ministry of Environment and Tourism.
 Namibia National Commission for UNESCO (NATCOM) (2008). Outputs of the First National Consultative Seminar on Education for Sustainable Development in Namibia. In Proceedings of the Workshop Report (pp. 1-25). Windhoek: NATCOM.
 Pennuel, W. R., & Freeman, T. (1997). Participatory Action Research in Youth Programming: A Theory in Use. Child and Youth Care Forum, 26, 175-185. http://dx.doi.org/10.1007/BF02589384
 Ragsdell, G. (2009). Participatory Action Research: A Winning Strategy for KM. Journal of Knowledge Management, 13, 564-576.
 Robottom, I., & Sauvê, L. (2003). Reflecting on Participatory Research in Environmental Education: Some Issues for Methodology. Canadian Journal of Environmental Education, 8, 111-128.
 Sauvé, L. (1996). Environmental Education and Sustainable Development: A Further Appraisal. Canadian Journal of Environmental Education, 1, 7-34.
 Schurink, W., Fouché, C. B., & de Vos, A. S. (2011). Qualitative Data Analysis and Interpretations. In: A. S. de Vos, H. Strydom, C. B. Fouché, & C. S. L. Delport (Eds.), Research at Grassroots. To the Social Scnces and Human Service Professions (pp. 397-423). 4th Edition, Pretoria: Van Schaik Publishers.
 Schutt, R. K. (2006). Investigating the Social World. The Process and Practice of Research (5th ed.). London: SAGE Publications.
 Stevenson, R. B. (2007). Schooling and Environmental Education: Contradiction in Purpose and Practice. Environmental Education Research, 13, 139-153. http://dx.doi.org/10.1080/13504620701295726
 Stonyer, H. (2001). The Problem of Women in Engineering—Is It Women, Engineering Academics, Curriculum or Engineering—Where to Act? Australasian Journal of Engineering Education, 9, 147-161.
 Tilbury, D. (1995). Sustainability Environmental Education for Sustainability: Defining the New Focus of Environmental Education in the 1990s. Environmental Education Research, 1, 195-212. http://dx.doi.org/10.1080/1350462950010206
 University of Namibia (UNAM) (2012). Faculty of Education Prospectus 2012. Windhoek: UNAM, Inspiring Minds & Shaping the Future.
 University of Namibia (UNAM) (2010). UNAM Forum on Line. Windhoek: UNAM, Inspiring Minds & Shaping the Future.
 Walliman, N. (2005). Your Research Project (2nd ed.). London: SAGE Publications.
 Wals, A. E. J., & van der Leij, T. (1997). Alternatives to National Standards for Environmental Education: Process-Based Quality Assessment. Canadian Journal of Environmental Education, 2, 7-28.
 Walter, M. (2009). Participatory Action Research. Social Research Methods. In A. Bryman (Ed.), Social Research Methods (pp. 151-158). London: The Falmer Press.
 Walter, P. (2009). Philosophies of Adult Environmental Education. Adult Education Quarterly, 60, 3-25. http://dx.doi.org/10.1177/0741713609336109