Chaidet, E. “The Development of a Food Sanitation Operation Manual ‘Food Establishment’ for Ministerial Regulation Hygiene for Food Establishment B.E. 2561 (A.D. 2018)”. RPU Journal of Business Administration, vol. 2, no. 2, Dec. 2023, pp. 109-31, https://so03.tci-thaijo.org/index.php/RPUBAJOURNAL/article/view/274049.