Kaewphichai, Phichitra, Manolee Sripaoraya Penpong, and Boonrirk Boonkong. 2025. “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 (2):21-40. https://doi.org/10.56825/jaems.2025.1226316.