Ojha, B, R K Sharma, and I. M. Amatya. “Application of Alum Sludge in Phosphate Phosphorus Removal from Contaminated Water”. Journal of the Institute of Engineering 15, no. 2 (July 31, 2019): 141–146. Accessed December 4, 2024. https://nepjol.info./index.php/JIE/article/view/27659.