Karakteristik Geokimia Organik Degradasi Fraksi Polar Batu Bara Bontang Kalimantan Timur. Jurnal Ilmu Fisika : Teori dan Aplikasinya, [S. l.], v. 2, n. 2, p. 49–54, 2020. Disponível em: https://ejournals.umma.ac.id/index.php/jifta/article/view/792. Acesso em: 13 sep. 2025.