Indriyani, Amalia Rosyida, Sudarti Sudarti, and Yushardi Yushardi. “ANALISIS LIMBAH PENCEMARAN AIR SUNGAI DI KOTA DAN DESA”. OPTIKA: Jurnal Pendidikan Fisika 8, no. 1 (February 22, 2024): 29-35. Accessed November 19, 2024. https://e-journal.uniflor.ac.id/index.php/optika/article/view/3386.