ธรรมพงษ์ ภ., and S. Sirisakorn. “ Chanthaburi Province”. RBRU Journal of Humanities and Social Sciences (online), vol. 1, no. 2, Jan. 2021, pp. 11-20, https://so05.tci-thaijo.org/index.php/husorbrujournal/article/view/247780.