Patandianan EA. COAL QUALITY REVIEW SURVEY, SORONG REGENCY, WEST PAPUA PROVINCE: SURVEY TINJAU KUALITAS BATUBARA KABUPATEN SORONG PROVINSI PAPUA BARAT. Program Studi S1 Teknik Pertambangan Universitas Papua [Internet]. 2022 Feb. 27 [cited 2026 Apr. 17];2(1):27-35. Available from: http://jurnal-intan.ac.id/index.php/intan/article/view/18