“Maintenance of Bilge Pump on Ship Trawl SPL IX Owned PT. Sinar Pesona Laut”. Jurnal Natur Indonesia 20, no. 2 (October 31, 2022): 35–40. Accessed April 20, 2025. https://ajoas.ejournal.unri.ac.id/index.php/natur/article/view/1692.