SIRITHANYAPORN, S. ส่วนหน้า. Mahachula Academic Journal, Bangkok, Thailand, v. 1, n. 2, p. ส่วนหน้า(1–12), 2018. Disponível em: https://so04.tci-thaijo.org/index.php/JMA/article/view/141142. Acesso em: 5 may. 2024.