Khongnun จิรยุทธ์. “Factors Affecting the Participation of Village Health Volunteers in the Prevention and Control of Coronavirus Disease 2019 in Phichit Province”. Journal of Public Health Naresuan University 3, no. 3 (December 26, 2021): 50–51. Accessed June 26, 2022. https://he01.tci-thaijo.org/index.php/JPHNU/article/view/252785.