W. Atsawasena, D. Sukwathanachaikul, P. Khawkham, and P. Jiarakongmun, “The Organization’s Commitment: A case of Personnel of Department of Radiology, Faculty of Medicine Ramathibodi Hospital, Mahidol University”, Rama Med J, vol. 36, no. 2, pp. 143–151, Jun. 2011.