Adsorption and Desorption Metal Cu (II) using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone. kaunia [Internet]. 2022 Dec. 15 [cited 2026 Feb. 1];18(2):41-5. Available from: https://ejournal.uin-suka.ac.id/saintek/kaunia/article/view/3706