Jesica Uli Panggabean, Bela Firmantoyo, Darmeli Nasution. An Operational Design Of Doppler Vhf Omni Directional Range (DVOR) Based On Virtual Reality As A Learning Media At Medan Aviation Polytechnic. Scientia [Internet]. 2024Sep.9 [cited 2025Sep.1];13(04):1302-8. Available from: http://seaninstitute.org/infor/index.php/pendidikan/article/view/2610