ปัญญา ศิริลักษณ์, and โทวันนัง รุ่งอรุณ. “The Study on Factors Affecting Work Happiness of Staffs at a Drug Addiction Rehabilitation Ward in the Northeast”. Journal of Ratchathani Innovative Health Sciences 2, no. 1 (January 1, 2018): 12–21. Accessed May 7, 2024. https://he02.tci-thaijo.org/index.php/JRIHS/article/view/213161.