“Adsorption and Desorption Metal Cu (II) Using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone”. Kaunia: Integration and Interconnection Islam and Science Journal 18, no. 2 (December 15, 2022): 41–51. Accessed February 1, 2026. https://ejournal.uin-suka.ac.id/saintek/kaunia/article/view/3706.