Approximation in Semi-compact and Pre-concave Sets in Metric Spaces. JOURNAL OF UNIVERSITY OF BABYLON for Pure and Applied Sciences, [S. l.], v. 30, n. 2, p. 125–130, 2022. DOI: 10.29196/jubpas.v30i2.4195. Disponível em: https://journalofbabylon.com/index.php/JUBPAS/article/view/4195.. Acesso em: 19 may. 2024.