Sari W, Suliawati S, Harahap B. Biaya Perawatan Mesin Produksi Es Kristal Menggunakan Metode Preventive Maintenance Policy. JURNAL TEKNOLOGI UNIVERSAL [Internet]. 2023Dec.28 [cited 2024May19];16(2):144 - 150. Available from: https://ejurnal.sttdumai.ac.id/index.php/unitek/article/view/583