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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 [Internet]. 2023 Jan. 22 [cited 2026 May 7];7(1). Available from: https://www.jistechunipa.com/index.php/istech/article/view/131