“ADSORPTION BEHAVIOUR OF CITRIC ACID FROM AQUEOUS SOLUTIONS ON ACTI­ VATED CHARCOAL” (2002) Biological Sciences - PJSIR, 45(2), pp. 82–85. Available at: https://www.biostaging.pjsir.org/index.php/biological-sciences/article/view/1755 (Accessed: 21 March 2026).