Damanik, Zoserijal, Recky Sendouw, and Itje Pangkey. 2025. “Effectiveness of Marine and Shipping Surveillance Through Patrol Reports at Class II Bitung Sea and Coast Guard Base”. Technium Social Sciences Journal 73 (1). Constanta, Romania:64-76. https://doi.org/10.47577/tssj.v73i1.12938.