OPTIMIZATION OF ENGINE SERVICE TIME SYSTEM AND P2H ON OHT CAT 777 HEAVY EQUIPMENT AT PT. SITUS SAPTAINDRA SEJATI ADMO SOUTH KALIMANTAN. Injection [Internet]. 31 Agustus 2023 [dikutip 26 September 2026];3(2):52-7. Tersedia pada: https://injection.jurnal.politap.ac.id/index.php/injection/article/view/1774