A. Sargaonkar and V. Deshpande, “Development of an Overall Index of Pollution for Surface Water Based on a General Classification Scheme in Indian Context,” Environmental Monitoring and Assessment, Vol. 89, No. 1, 2003, pp. 43-67.
 J. D. Sharma, P. Sharma, P. Jain and D. Sohu, “Chemical Analysis of Drinking Water of Sanganer Tehsil, Jaipur District,” International journal of Environmental Science and Technology, Vol. 2, No. 4, 2005, pp. 373-379.
 S. Ahmed, M. Hussain and W. Abderrahman, “Using Multivariate Factor Analysis to Assess Surface/Logged Water Quality and Source of Contamination at a Large Irrigation Project at Al-Fadhli, Eastern Province, Saudi Arabia,” Bulletin of Engineering Geology and the Environment, Vol. 64, 2005, pp. 315-232.