Salleh NF, Syamsurizal M, Ghafar NA, Shukri NM, Hapani M. ORANGE PEEL WASTES AS LOW-COST ADSORBENT FOR REMOVAL OF NICKEL AND CHROMIUM IN AQUEOUS SOLUTION. Malay. J. Catal. [Internet]. 2023 Mar. 30 [cited 2024 Nov. 22];7(1):20-5. Available from: https://mjcat.utm.my/index.php/MalJCat/article/view/170