Athalla, Faradisa, Erni Sulistiawati, and Iwan Setiawan. “Optimization of Copper Dissolution from Electronic Waste Printed Circuit Board Using Leaching Method”. Sains Natural: Journal of Biology and Chemistry 12, no. 1 (January 27, 2022): 1–9. Accessed April 16, 2026. https://www.ejournalunb.ac.id/JSN/article/view/322.