Noicharoen, Phunthila. 2022. “FACTORS AFFECTING QUALITY OF LIFE FOR THE ELDERLY IN PHON SA SUBDISTRICT ADMINISTRATIVE ORGANIZATION, THA BO DISTRICT, NONG KHAI PROVINCE”. Journal of MCU Nakhondhat 9 (11). Nakhon Si Thammarat, Thailand:207-17. https://so03.tci-thaijo.org/index.php/JMND/article/view/268179.