krajaeajan, Santi, and Natsaphan Pheaphan. “Factors affecting of the Open Innovation of Restaurant Business in Thailand”. Journal of Modern Learning Development 5, no. 5 (September 5, 2020): 13–27. accessed March 14, 2025. https://so06.tci-thaijo.org/index.php/jomld/article/view/244068.