ลิมป์ศิระ ภัทระ. 2016. “Enlargement of Association of Southeast Asian Nations (in Thai)”. Connexion: Journal of Humanities and Social Sciences 5 (1). Chiang Rai, Thailand:37-52. https://so05.tci-thaijo.org/index.php/MFUconnexion/article/view/241354.