Jesica Uli Panggabean, Bela Firmantoyo and Darmeli Nasution 2024. An Operational Design Of Doppler Vhf Omni Directional Range (DVOR) Based On Virtual Reality As A Learning Media At Medan Aviation Polytechnic. Jurnal Scientia. 13, 04 (Sep. 2024), 1302-1308. DOI:https://doi.org/10.58471/scientia.v13i04.2610.