Koograsang, A., and A. Kachawangsri. “STRATEGIES FOR PROMOTING CREATIVE GASTRONOMY TOURISM ACTIVITIES BY APPLYING MARKETING COMMUNICATION THROUGH GAMIFICATION CONCEPT”. Phranakhon Rajabhat Research Journal : Humanities and Social Sciences, vol. 15, no. 1, Oct. 2019, pp. 438-56, https://so05.tci-thaijo.org/index.php/PNRU_JHSS/article/view/189905.