เอกพันธ์ ว. สารบัญ. Journal of Graduate School Sakon Nakhon Rajabhat University, Sakon Nakhon, Thailand, v. 16, n. 75, 2020. Disponível em: https://so02.tci-thaijo.org/index.php/SNGSJ/article/view/233655. Acesso em: 21 sep. 2026.