Abundance, Diversity, and Water Quality Assessment of Epilithic Diatoms as Bioindicator in The Dem River, Glothak Waterfall, Wagir District, Malang Regency. (2025). Al-Kauniyah: Jurnal Biologi, 19(1), 52-62. https://doi.org/10.15408/kauniyah.v19i1.42143