SUSMITA HAZRA; JONATHAN RISNER. SOLAR ACTIVITY VARIATION AND ITS EFFECTS ON IONOSPHERIC ION DENSITIES. The American Journal of Applied Sciences, [S. l.], v. 5, n. 08, p. 13–20, 2023. DOI: 10.37547/tajas/Volume05Issue08-04. Disponível em: https://theamericanjournals.com/index.php/tajas/article/view/4386. Acesso em: 9 oct. 2025.