Konsentrasi dan Distribusi Spasial Arsenik (As) Pada Air Sungai Batang Ombilin, Sawahlunto, Sumatra Barat. jse [Internet]. 2026 Jul. 2 [cited 2026 Jul. 2];11(3). Available from: http://jse.serambimekkah.id/index.php/jse/article/view/1843