1. Abdul Jameel, A. (2002). Evaluation of drinking water quality in Tiruchirappalli, Tamil Nadu. Indian Journal of Environmental Health, 44(2), 108–112.
2. APHA (1995). Standard methods for examination of water and wastewater, 19th edn. Washington, D.C.
3. Ashley, R. P., & Burley, M. J. (1994). Control on the occurrence of fluoride in groundwater in the Rift valley of Ethiopia. Groundwater Quality. London: Chapman and Hall Publications.
4. Azeez, P. A., Nadarajan, N. R., & Mittal, D. D. (2000). The impact of monsoonal wetland on groundwater chemistry. Pollution Research, 19(2), 249–255.
5. Bhanja, K. M., & Ajoy, K. P. (2000). Studies on the water quality index of river Sanamachhakandana at Keonjhar Garh, Orissa, India. Pollution Research, 19(3), 377–385.