Yahdi, Yahdi, Lalu Ahmad Didik Meiliyadi, Multazam Multazam, and Kurniawan Arizona. “Improvement of Water Quality by Hematite Based on River Sand Magnetic Minerals of Lombok Island”. Jurnal Penelitian dan Pengkajian Ilmu Pendidikan: e-Saintika 9, no. 2 (July 30, 2025): 525–540. Accessed July 29, 2026. https://journal-center.litpam.com/index.php/e-Saintika/article/view/3273.