P. (Phapat Thitadummo), P. S. (Chor Tassaniyo), and P. K. Kittisobhano, “THE DEVELOPMENT OF THE QUALITY OF LIFE THE ELDERLY ACCORDING TO BUDDHIST PRINCIPLES OF MONKS IN PHICHIT PROVINCE”, MCU SSR, vol. 11, no. 3, pp. 252–266, Jun. 2022.