Topological Projective Covers for Topological Groups. Journal of the College of Basic Education, [S. l.], v. 23, n. 99, p. 129–140, 2022. DOI: 10.35950/cbej.v23i99.6773. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6773.. Acesso em: 21 apr. 2025.