Khan, A Rasteed, Faltim Uddin H, and S Zaka Ahmed. “ADSORPTION BEHAVIOUR OF CITRIC ACID FROM AQUEOUS SOLUTIONS ON ACTI­ VATED CHARCOAL”. Biological Sciences - PJSIR 45, no. 2 (April 22, 2002): 82–85. Accessed June 8, 2025. http://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/1755.