Nugraha, I. M. A., Rasdam, R. and Rajab, R. A. (2021) “Increased Activities of Watchkeeping in the Operation of the Marine Engine at Hasil Melimpah 18 Vessel”, Jurnal Sumberdaya Akuatik Indopasifik, 5(4), pp. 439–446. doi: 10.46252/jsai-fpik-unipa.2021.Vol.5.No.4.179.