Rusman, and Rima Safitri. “Design of a DVOR Shelter Security System at Sam Ratulangi International Airport Manado”. Airman: Jurnal Teknik dan Keselamatan Transportasi 1, no. 1 (June 29, 2018): 9–14. Accessed November 21, 2024. https://jurnal.poltekbangmakassar.ac.id/index.php/airman/article/view/29.