Suhardjo Poertadji, Nukman, Muhammad Hikam. PENGARUH AGLOMERASI AIR-MINYAK SAWIT TERHADAP KADAR KARBON DAN NILAI KALORI BATUBARA SEMI-ANTRASIT, BITUMINUS DAN SUB-BITUMINUS. j. sains materi indonesia [Internet]. 2006 Jun. 30 [cited 2026 Nov. 15];7(3):68-74. Available from: https://ejournal.brin.go.id/jsmi/article/view/6473