Pornwiang S, Manokarn M. FUND MANAGEMENT GUIDELINES FOR EFFECTIVE ELEMENTARY SCHOOL LUNCHES TO REDUCE MALNOURISHED STUDENTS’ PROBLEMS. JSBA [internet]. 2021 Aug. 25 [cited 2026 Mar. 6];6(8):112-28. available from: https://so04.tci-thaijo.org/index.php/JSBA/article/view/249149