สุทธิมาร อ. อื่นๆ. Research and Development Journal Suan Sunandha Rajabhat University, Bangkok, Thailand, v. 9, n. 2, 2019. DOI: 10.53848/irdssru.v9i2.214195. Disponível em: https://so05.tci-thaijo.org/index.php/irdssru/article/view/214195. Acesso em: 7 ต.ค. 2026.