สุทธิมาร อ. สารบัญ. Research and Development Journal Suan Sunandha Rajabhat University, Bangkok, Thailand, v. 9, n. 2, 2019. DOI: 10.53848/irdssru.v9i2.214154. Disponível em: https://so05.tci-thaijo.org/index.php/irdssru/article/view/214154. Acesso em: 7 ธ.ค. 2025.