เตี้ยแจ้ ป., A. . Thongbi, U. . Chuenruetai, C. . Makert, and S. . Sri-jae. “COVID-19 With Case Investigation and Study of Knowledge, Attitude, Practice in Huayluek Sub-District, Banlat District, Phetchaburi”. The Office of Disease Prevention and Control 9th Nakhon Ratchasima Journal, vol. 27, no. 3, Sept. 2021, pp. 5–15, https://he02.tci-thaijo.org/index.php/ODPC9/article/view/249757.