นาควิบูลย์วงศ์ ส. A CAUSAL RELATIONSHIP MODEL OF LEARNING WITH HAPPINESS BASED ON EDUCATIONAL REFORM FOR STUDENTS OF SANTIRAT VOCATIONAL COLLEGE. spurhs [Internet]. 2018 Mar. 28 [cited 2024 May 17];13(1):112-21. Available from: https://so05.tci-thaijo.org/index.php/spurhs/article/view/117062