“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: Journal of Information Science and Technology, vol. 7, no. 1, Jan. 2023,
https://www.jistechunipa.com/index.php/istech/article/view/131.