Sihombing AW, Caesar Akbar M. A MACH AIRSPEED WARNING SYSTEM A MACH AIRSPEED WARNING SYSTEM IN COCKPIT. jp [Internet]. 2022Nov.9 [cited 2024Nov.20];7(3):224-3. Available from: http://ejournal.poltekbangsby.ac.id/index.php/jurnalpenelitian/article/view/1116