Trianda, Yenni, Reni Desmiarti, Tomonari Fujisawa, Yasushi Ishiguro, and Fusheng Li. “Study of Suspended Impurities Origin and Composition in the Treatment Process of Johkasou System”. ASEAN Journal of Chemical Engineering 18, no. 2 (December 31, 2018): 54-61. Accessed July 17, 2024. https://journal.ugm.ac.id/v3/AJChE/article/view/9024.