ปทุมเจริญวัฒนา ว. คิดนอกกรอบ. Journal of Education Studies, Bangkok, Thailand, v. 43, n. 2, p. 167–179, 2015. Disponível em: https://so02.tci-thaijo.org/index.php/EDUCU/article/view/35118. Acesso em: 15 may. 2024.