Posri, T., S. Chanruang, and N. Kaewnui. “Problem impacts and methods for restaurant business adjusting in the sutiation of the Coronavirus 2019 epidemic”. Journal of Modern Learning Development, vol. 9, no. 4, Apr. 2024, pp. 458-79, https://so06.tci-thaijo.org/index.php/jomld/article/view/264807.