Jitchan, P., T. Yindesuk, and W. Pumchan. “Effect of Competency Development Health Volunteers for Prevention Hypertension in Tumbon Kham Yai Ubonratchathani Province”. Journal of The Royal Thai Army Nurses, vol. 23, no. 2, Oct. 2022, pp. 119-28, https://he01.tci-thaijo.org/index.php/JRTAN/article/view/253152.