Kaewphichai, Phichitra, Manolee Sripaoraya Penpong, and Boonrirk Boonkong. “Cost-Effectiveness Analysis of Health and Nutrition Promotion for the Elderly in Khlong Prab Subdistrict, Ban Na San District, Surat Thani Province”. Journal of Applied Economics and Management Strategy 12, no. 2 (December 3, 2025): 21–40. Accessed December 12, 2025. https://kuojs.lib.ku.ac.th/index.php/jaems/article/view/6316.