Nitchhote, T., and D. C. Nuangjamnong. “The New Normal Service Quality and Behavior Food Purchase Intention During COVID-19”. AU-HIU International Multidisciplinary Journal, vol. 2, no. 1, Jan. 2022, pp. 9-20, http://www.assumptionjournal.au.edu/index.php/auhiu/article/view/5859.