The Isotherm Studies of Cu (II) Adsorption in Kolong Bangka’s Water onto NaOH-Deacetylated Shrimp Shells Waste Chitin. Stannum [Internet]. 2023 Apr. 30 [cited 2026 Apr. 10];5(1):1-7. Available from: https://journal.ubb.ac.id/index.php/stannum/article/view/3848