“EFISIENSI ADSORPSI LOGAM Cu MENGGUNAKAN KOMPOSIT Fe3O4 KITOSAN SiO2 SEKAM PADI”. PROCEEDINGS OF NATIONAL COLLOQUIUM RESEARCH AND COMMUNITY SERVICE 5 (December 24, 2021): 181–184. Accessed April 12, 2026. https://journal.ubb.ac.id/index.php/snppm/article/view/2745.