Hadayani LW, Riwayati I, Ratnani RD. ADSORPSI PEWARNA METILEN BIRU MENGGUNAKAN SENYAWA XANTHAT PULPA KOPI. Momentum [Internet]. 2015 May 26 [cited 2025 Dec. 21];11(1). Available from: https://publikasiilmiah.unwahas.ac.id/MOMENTUM/article/view/1077