ZULKIFLI, H.; HASHIM, R. Philosophy for Children (P4C) in Improving Critical Thinking in a Secondary Moral Education Class. International Journal of Learning, Teaching and Educational Research, [S. l.], v. 19, n. 2, p. 29–45, 2020. Disponível em: http://ijlter.myres.net/index.php/ijlter/article/view/431. Acesso em: 11 jan. 2026.