D.G. KOLHATKAR (2012) “Study Of Physicochemical Characteristic Of Opium Effluent In Govt. Opium And Alkloid Factory Ghazipur (U.P.)”, International Journal of Pharma and Bio Sciences, 3(1), pp. 356–362. Available at: https://ijpbs.net/index.php/journal/article/view/1195 (Accessed: 23 July 2026).