ทุมาโต ว. and Chotpittayanon, N. 2026. FACTORS AFFECTING THE QUALITY OF LIFE OF THE ELDERLY IN KO CHAN SUBDISTRICT MUNICIPALITY, KO CHAN DISTRICT,CHONBURI PROVINCE, THAILAND. Journal of MCU Phetchaburi Review . 9, 1 (May 2026), 77–87.