Sirithanyaporn, S. (2018) “ส่วนหน้า”, Mahachula Academic Journal. Bangkok, Thailand, 2(2), pp. ส่วนหน้า(1–12). Available at: https://so04.tci-thaijo.org/index.php/JMA/article/view/141586 (Accessed: 7 February 2023).