“SIRTU PRODUCTION DETERMINATION BASED ON MINING BREAK-EVEN POINT AT PT. MANOKWARI LEMON ISLAND: PENENTUAN PRODUKSI SIRTU BERDASARKAN TITIK IMPAS PENAMBANGAN PADA PT. PULAU LEMON MANOKWARI”, JISTECH, vol. 7, no. 1, Jan. 2023, Accessed: Jun. 21, 2026. [Online]. Available: https://jistechunipa.com/index.php/istech/article/view/131