Marwati, Siti, Regina Tutik Padmaningrum, and Sunarto Sunarto. 2016. “RECOVERY OF GOLD (Au) AND SILVER (Ag) METALS IN THE ELECTRONIC WASTE THROUGH MULTILEVEL PRECIPITATION PROCESS”. Jurnal Sains Dasar 4 (2):190-97. https://doi.org/10.21831/jsd.v4i2.9099.