“WALNUT SHELL CARBON AS AN ADSORBENT A COMPARATIVE STUDY ON ADSORPTION OF MONOBASIC AND DIBASIC ACID” (2022) International Journal of Food and Nutritional Sciences, 11(5), pp. 2127–2142. Available at: https://www.ijfans.org/index.php/Journal/article/view/5922 (Accessed: 15 August 2026).