Chairum, Panus, Pattariya Suwanboon, and Ketsarin Kongmian. “SUFFICIENCY ECONOMY APPLICATION FOR IMPROVING THE QUALITY OF LIFE TO RAISE INCOME AND THE WELL-BEING OF THE ELDERLY FAMILIES IN PHETCHABURI PROVINCE”. Journal of MCU Phetchaburi Review 5, no. 2 (January 20, 2023): หน้า 83 – 99. accessed August 29, 2026. https://so03.tci-thaijo.org/index.php/JPR/article/view/264600.