Sirisyos Kijmongkolvanich, Siriphong Sirisawat, and Songwut Egwutvongsa. “Creative Thinking: The Development of Lifelong Learning With the Principle of Andragogy for The Elderly Group in Northern Thailand”. Educational Administration: Theory and Practice, vol. 30, no. 4, Apr. 2024, pp. 2403-1, doi:10.53555/kuey.v30i4.1162.