Proses Adsorpsi Amonia dengan Karbon Aktif dari Cangkang Kelapa Sawit (Palm Shell) Teraktivasi H2SO4. jse [Internet]. 2025 Oct. 7 [cited 2026 May 19];10(4). Available from: https://jse.serambimekkah.id/index.php/jse/article/view/1294