Differential Equations Systems in Astronomy Technology and Their Applications. Journal of the College of Basic Education, [S. l.], v. 31, n. 134, p. 69–81, 2026. DOI: 10.35950/cbej.v31i134.14303. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/14303.. Acesso em: 4 jun. 2026.