Estimation Of The Electron Content Using Dual Frequency Transit Doppler Receiver. Jurnal Teknologi, [S. l.], v. 8, n. 1, p. 1–09, 1986. DOI: 10.11113/jt.v8.951. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/951.. Acesso em: 23 jul. 2024.