N. Siripoolsak, U. Mahaveravat, and C. Sota, “Results of the application of hazard analysis and critical control point system (HACCP) for controlling food safety and food cleaning preparation in the cafeteria : a case study of Anuban Changwat Nong Khai school (Thai)”, Asia Pac J Sci Technol, vol. 14, no. 10, pp. 996–1006, Apr. 2017.