Bamrungsuntorn, Phoosita, and Korakoch Attaviriyanupap. 2021. “Using Role-playing Game (RPG) for Teaching Culture in German as a Foreign Language”. Journal of the Faculty of Arts, Silpakorn University 43 (1):52-69. https://so04.tci-thaijo.org/index.php/jasu/article/view/252036.