The study of the Effect of Ionospheric Variables on the Astronomical Radio Signal. Iraqi Journal of Science, [S. l.], v. 65, n. 11, p. 6753–6764, 2024. DOI: 10.24996/ijs.2024.65.11.44. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9463.. Acesso em: 22 feb. 2025.