Natasha, Nadia, Ghina Rabbani, Nofrijon Sofyan, Johny Soedarsono, Agus Prasetyo, Ahmad Maksum, Rini Riastuti, and Isnanda Nuriskasari. 2023. “Using the Gold Bullion Slag from Indonesia As Lithium Resources With HCL Leaching Method”. Eastern-European Journal of Enterprise Technologies 1 (6 (121):47-57. https://doi.org/10.15587/1729-4061.2023.273491.