“Konsentrasi dan Distribusi Spasial Arsenik (As) Pada Air Sungai Batang Ombilin, Sawahlunto, Sumatra Barat”, jse, vol. 11, no. 3, Jul. 2026, Accessed: Jul. 02, 2026. [Online]. Available: http://jse.serambimekkah.id/index.php/jse/article/view/1843