Cahyadi, Ferry D., Nawanto Budi Sukoco, Widodo S. Pranowo, and Kamija Kamija. “Pembuatan Purwarupa Peta Contour Best Operation Depth Kapal Selam Di Perairan Sangihe Talaud : Prototype of Contour Map of Best Operation Depth Submarine in Sangihe Talaud . Waters”. Jurnal Chart Datum 4, no. 2 (September 21, 2022): 87–94. Accessed December 23, 2024. https://jurnal.sttalhidros.ac.id/index.php/chartdatum/article/view/65.