Sirisyos Kijmongkolvanich, Siriphong Sirisawat and Songwut Egwutvongsa 2024. Creative Thinking: The Development of Lifelong Learning With the Principle of Andragogy for The Elderly Group in Northern Thailand. Educational Administration: Theory and Practice. 30, 4 (Apr. 2024), 2403–2413. DOI:https://doi.org/10.53555/kuey.v30i4.1162.