H. ALI, W.; Y. YASEEN, L. A Study of Solar Activity Effect on the Total Electronic Content of Ionosphere above Iraq for the Solar Cycle 24. Rafidain Journal of Science, [S. l.], v. 28, n. 1, p. 81–93, 2019. DOI: 10.33899/rjs.2019.159409. Disponível em: https://jwups.uomosul.edu.iq/index.php/rsci/article/view/46787. Acesso em: 27 sep. 2025.