Ngampramuan, Wipapan. “Linguistic Landscape in Thailand: A Case Study of Languages Used on Signs at Suvarnabhumi International Airport”. FOYER: The Journal of Humanities, Social Sciences, and Education 5, no. 2 (December 9, 2022): 314–331. Accessed May 4, 2024. https://so02.tci-thaijo.org/index.php/lajournal/article/view/257959.