Meiliyadi, Lalu Ahmad Didik, Muh. Zainur Rahman, and Zahida Zain. 2024. “Functional Group Analysis of Silica Gel Based on River Sand Magnetic Mineral As Heavy Metal Absorbance”. KONSTAN - JURNAL FISIKA DAN PENDIDIKAN FISIKA 9 (01), 34-41. https://doi.org/https://doi.org/10.20414/konstan.v9i01.484.