Widada, Wahyu. 2013. “METODE DOPPLER RADIO UNTUK MENGUKUR KECEPATAN ROKET RX200 [RADIO DOPPLER METHOD FOR MEASURING VELOCITY OF ROCKET RX200]”. Indonesian Journal of Aerospace 10 (2 Desember):113-19. https://ejournal.brin.go.id/ijoa/article/view/12331.