OPTIMALISASI SISTEM WAKTU SERVICE ENGINE DAN P2H PADA ALAT BERAT OHT CAT 777 DI PT. SAPTAINDRA SEJATI SITE ADMO KALIMANTAN SELATAN . Injection [Internet]. 2023 Aug. 31 [cited 2025 Dec. 11];3(2):52-7. Available from: https://jurnal.politap.ac.id/index.php/injection/article/view/1774