Thunboonyakid, S., Sukchan, P., & Sangsri, T. (2023). A A retrospective study on the effectiveness of active surveillance, control and prevention of the outbreak of COVID-19 in rural communities, Ron Phibun District Nakhon Si Thammarat Province. Princess of Naradhiwas University Journal, 15(2), 225–242. Retrieved from https://li01.tci-thaijo.org/index.php/pnujr/article/view/255133