Matbing, P., P. Kampapai, P. K. Patson Kampapai, R. Pattayaso, S. Chinakool, and Y. insumran. “Microbiological Quality of Khanom Chin”. SciTech Research Journal, vol. 3, no. 1, June 2020, pp. 14-29, https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/245782.