Srinukul N, Aiyakorn S, Udomkijmongkol C. Work Motivation Affecting Happiness at Work for the Personnel of the Ministry of Labor in the Upper Northeastern Region 2. IARJ [Internet]. 2022 Sep. 10 [cited 2024 Apr. 29];2(5):253-72. Available from: https://so03.tci-thaijo.org/index.php/IARJ/article/view/263184