Boonpadung, Duangsamorn, Nattapong Techarattanased, Suramon Chancharoen, and Chandej Charoenwiriyakul. 2020. “Factors Affecting Individual Spirit at Work of Healthcare Professionals In Crowns Prince Hospitals Thailand”. Journal of the Association of Researchers 24 (2):40-50. https://so04.tci-thaijo.org/index.php/jar/article/view/240929.