1. Albert, S., and D. A. Whetten. 1985. “Organizational Identity.” In Research in Organizational Behavior, edited by L. L. Cummings, and B. M. Staw, 263–295. Greenwich, CT: JAI.
2. Long-term unemployment
3. Aşkın İ. 2015. "An Investigation of Self-directed Learning Skills of Undergraduate Students." PhD diss. Hacettepe University.
4. Baert, H., K. De Rick, and K. Van Valckenborgh. 2006. “Towards the Conceptualization of Learning Climate.” In Adult Education: New Routes in a New Landscape, edited by R. V. De Casto, A. V. Sancho, and P. P. Guimaraes, 87–111. Braga: University of Minho Press.
5. Bandura, A. 1986. Social Foundations of Thought and Action, 23–28. Englewood Cliffs, NJ.