Marwanto, Marwanto, Budi Darmawan, and Manahan Budianto Pandjaitan. “Analysis of Selection of Unmanned Aircraft in Supporting Security Operations at Sea”. Journal of Industrial Engineering & Management Research 4, no. 4 (July 17, 2023): 20-27. Accessed January 9, 2025. https://mail.jiemar.org/index.php/jiemar/article/view/483.