Napitupulu M, Walanda DK, Natakusuma Y, Basir M, Mahfudz. Capacity of Adsorption of Cadmium (II) Ion by Bio-charcoal from Durian Barks. JSST [Internet]. 2018 Jun. 21 [cited 2024 May 1];34(1-2):30-6. Available from: https://www.informaticsjournals.com/index.php/jsst/article/view/11055