Rittilun, Saksit, Nuttaporn Lawthong, and Sirichai Kanjanawasee. “Construct Validity of Thai Lifelong Learning Inventory: Evidence from High-School Students in Phrae, Kalasin, Prachin Buri, and Pangnga Provinces”. Kasetsart Journal of Social Sciences 39, no. 2 (June 2, 2018): 207–214. Accessed April 29, 2024. https://so04.tci-thaijo.org/index.php/kjss/article/view/242489.