Elizabeth, K.M., K. Nagesh, Y. Vimala, and P. Hepsibah. 2010. “Physico-Chemical and Microbiological Analysis of Dairy Effluents, Nathayyapalem, Gajuwaka, Visakhapatnam, Andhra Pradesh”. Asian Journal of Chemistry 18 (4):2533-37. https://asianpubs.org/index.php/ajchem/article/view/20615.