Ibrahim, Rijaluddien Muh. “TINJAUAN LOKASI HOLDING POINT PESAWAT VISUAL FLIGHT RULES (VFR) MANADO CONTROL ZONE”. Jurnal Penelitian 8, no. 4 (January 10, 2024): 324–335. Accessed October 18, 2024. https://ejournal.poltekbangsby.ac.id/index.php/jurnalpenelitian/article/view/1506.