Phuthakorn R. FACTORS AFFECTING EARLY ELDERLY WORKERS (60-69 YEARS OLD): CASE STUDY IN SARABURI PROVINCE. PNRU JHSS [internet]. 2023 Dec. 30 [cited 2026 Oct. 9];18(2):146-62. available from: https://so05.tci-thaijo.org/index.php/PNRU_JHSS/article/view/266629