Yahdi, Y., Meiliyadi, L. A. D., Multazam, M., & Arizona, K. (2025). Improvement of Water Quality by Hematite Based on River Sand Magnetic Minerals of Lombok Island. Jurnal Penelitian Dan Pengkajian Ilmu Pendidikan: E-Saintika, 9(2), 525-540. https://doi.org/10.36312/e-saintika.v9i2.3273