wijitraphan, tanasit. “An Outbreak Investigation of Acute Diarrhea in a School, Sanpatong District, Chiangmai Province, Thailand, September 2020”. Journal of Disease and Health Risk DPC.3 15, no. 1 (April 27, 2021): 56–66. Accessed May 6, 2024. https://he01.tci-thaijo.org/index.php/JDPC3/article/view/245372.