Sunthornwat R, Kongsorn C, Phetcharabunin P. Relationship between the Students’ Behavior of Spending Free Time and Learning Outcome at Pathumwan Institute of Technology. J. Adv. Dev. Eng. Sci. [internet]. 2023 Aug. 22 [cited 2026 Apr. 22];7(18):59-70. available from: https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/870