Panngam, Chayapat, Tharisa Aramruang, and Wittaya Inwanna. “Food sanitation studies of food stalls Pho Sadet Subdistrict Market Area Muang District, Nakhon Si Thammarat Province”. Chalermkarnchana Academic Journal 9, no. 1 (January 15, 2022). accessed October 8, 2026. https://so19.tci-thaijo.org/index.php/cnujournal/article/view/186.