HASSAN, Arba’at; PUDIN, Susan. The Informal Environmental Education Value Practices Among Adults in Sabah, Malaysia. Journal of Turkish Science Education, [S. l.], v. 8, n. 1, p. 19–28, 2011. Disponível em: https://www.tused.org/index.php/tused/article/view/545. Acesso em: 17 mar. 2026.