A study on surface water quality of Noyil Vattamala Karai and Ponnani drainage Basins - India. Ministry of Agriculture and Irrigation. Central Ground Water Board; Gupta, A. A.; Sharma, V. P.; Raju K. C. B. (Coimbatore : The Author, 1980)
Keywords: Water-supply -- India; Water-supply, Agricultural -- Quality; Water quality -- India; Noyil Vattamala Karai Basins