Tutun Nugraha, Yestine Yuliantina, and Supandi Suminta. “ACTIVATION AND PURIFICATION OF BENTONITE FOR THE TREATMENT OF CRUDE PALM OILAS VEGETABLE OIL”. Jurnal Sains Materi Indonesia 12, no. 2 (February 28, 2011): 91–95. Accessed November 15, 2026. https://ejournal.brin.go.id/jsmi/article/view/6653.