Rabbamperng, Sornsawan, and Tanastha Rojanatrakul. 2023. “Guidelines for the Development of Operation in the Role of Village Health Volunteers (Vol.), Nong Mai Kong Subdistrict, Sai Ngam District, Kamphaeng Phet Province”. Journal of Modern Learning Development 8 (12):50-60. https://so06.tci-thaijo.org/index.php/jomld/article/view/263132.