Tutun Nugraha, Yestine Yuliantina, Supandi Suminta. ACTIVATION AND PURIFICATION OF BENTONITE FOR THE TREATMENT OF CRUDE PALM OILAS VEGETABLE OIL. j. sains materi indonesia [Internet]. 2011 Feb. 28 [cited 2026 Nov. 15];12(2):91-5. Available from: https://ejournal.brin.go.id/jsmi/article/view/6653