Sidarta, Y. ., D. Krisdiyanto, and K. Khamidinal. “Adsorption and Desorption Metal Cu (II) Using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone”. Kaunia: Integration and Interconnection Islam and Science Journal, vol. 18, no. 2, Dec. 2022, pp. 41-51, doi:10.14421/kaunia.3706.