Khampha K, Thongbai T, Pankoo B. The Code of Ethics of Teachers in Public Service Advertising on the 7ElevenThailand YouTube Channel between 2012 – 2020. FOYER [Internet]. 2022 Jun. 27 [cited 2024 Apr. 19];5(1):143-82. Available from: https://so02.tci-thaijo.org/index.php/lajournal/article/view/255297