Gultom, F., Harsono, G., Pranowo, W. S., & Adrianto, D. (2022). Sistem Informasi Pasang Surut Berbasis Android di Wilayah Kerja Pangkalan TNI Angkatan Laut (Studi Kasus Belawan, Tarempa, Sibolga, Natuna dan Cilacap): Android Based Tidal Information System in the Working Area of ​​the Naval Base (Case Study of Belawan, Tarempa, Sibolga, Natuna and Cilacap). Jurnal Chart Datum, 3(2), 81–92. https://doi.org/10.37875/chartdatum.v3i2.121