Anonjarn, K., S. . Boonkerd, B. . Anonjarn, and S. . Chinnapun. “A Competencies Promotion to Control the Coronavirus Disease 2019 Outbreak of Community Health Volunteers”. UBRU Journal for Public Health Research, vol. 11, no. 1, June 2022, pp. 138-44, https://he02.tci-thaijo.org/index.php/ubruphjou/article/view/252631.