“CRUSHER PRODUCTIVITY ANALYSIS IN COAL PROCESSING TO ACHIEVE MONTHLY PRODUCTION TARGET AT PT JAKSA LAKSA UTAMA SITE PT BGG LAHAT SOUTH SUMATRA”. Jurnal Humaniora & Sosial Sains, vol. 2, no. 3, Sept. 2025, pp. 310-5, https://humaniorasains.id/jhss/article/view/139.