AL BERNAMI, Mohammed Jaafar. The effects the Earth , Sun and Moon attraction on satellite’s orbital motion. Journal of Kufa-Physics, Kufa, Najaf, IRAQ, v. 1, n. 1, 2009. Disponível em: https://journal.uokufa.edu.iq/index.php/jkp/article/view/7537. Acesso em: 26 jun. 2026.