Yingyong, Kritsanatphong, and Nuttawut Rojniruttikul. “WORKPLACE HAPPINESS IN EXPRESS INTERNATIONAL SHIPPING SERVICE PROVIDER”. AU-GSB e-JOURNAL 12, no. 1 (July 9, 2019): 3. Accessed May 2, 2024. http://www.assumptionjournal.au.edu/index.php/AU-GSB/article/view/3975.