NAFILA TIMAMI, J. .; RAHAYU SURTININGTYAS , S.; SAPTANDARI, Y. The Use of High Frequency Radio on Aircraft Operating in the Uncontrolled Airspace of Sam Ratulangi International Airport Manado . Proceeding of International Conference of Advanced Transportation, Engineering, and Applied Social Science , [S. l.], 2025. Disponível em: https://ejournal.poltekbangsby.ac.id/index.php/icateass/article/view/2309. Acesso em: 26 dec. 2025.