Sugandi, Budi, Fathiyyah Syahidah, and Ridwan Ridwan. “Analysis of Ship Radio Frequency Coverage Failure”. Journal of Applied Electrical Engineering 8, no. 1 (June 24, 2024): 78–82. Accessed March 9, 2025. https://jurnal.polibatam.ac.id/index.php/JAEE/article/view/7810.