earsakul, siriwong, & Lohapan, N. . (2020). Development Guidelines for Learning Management for the Elderly: a Case of Nong Khai Municipality School for the Elderly, Nong Khai Province. University of the Thai Chamber of Commerce Journal Humanities and Social Sciences, 40(2), 31–48. Retrieved from https://so06.tci-thaijo.org/index.php/utccjournalhs/article/view/235309