"Preparatory optimism among kindergarten students". Journal of the College of Basic Education, [S. l.], v. 30, n. 125, p. 18–31, 2024. DOI: 10.35950/cbej.v30i125.11982. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/11982.. Acesso em: 20 apr. 2025.