Irviansyah, A., & Nur Ichsan, A. M. (2022). COAL QUALITY ANALYSIS BERDASARKAN STUDI TECHNICAL IMPROVEMENT MANUAL SAMPLING . Prosiding Seminar Nasional Teknologi Industri (SNTI), 9(1), 194–199. Diambil dari https://journal.atim.ac.id/index.php/prosiding/article/view/323