Andres, L., & Carpenter, S. (1997). Today's higher education students: Issues of admission, retention, transfer, and attrition in relation to changing student demographics. Centre for Policy Studies in Education University of British Columbia. Retrieved October 12, 2007 from:http://www.bccat.bc.ca/pubs/today.pdf (页面存档备份,存于互联网档案馆)
Billett, S. (1998). Ontogeny and participation in communities of practice: A socio-cognitive view of adult development. Studies in the Education of Adults, 30(1), 21. Retrieved September 15, 2008 from the Academic Search Elite database.
Campbell, D. (1984). The new majority: Adult Learners in the University. Edmonton: The University of Alberta Press.
Kozulin, A. (2004). Vygotsky's theory in the classroom: Introduction. European Journal of Psychology of Education - EJPE, 19(1), 3-7. Retrieved September 15, 2008 from the Academic Search Elite database.
Kroth, M. (2000). Life Mission and Adult Learning. Adult Education Quarterly, 50 (2).
McDonough, G. (2005). Moral maturity and autonomy: appreciating the significance of Lawrence Kolhberg's Just Community. Journal of Moral Education, 34(2), 199-213. Retrieved September 18, 2008 from the Academic Search Elite database.
Merriam, S. B., Caffarella, R., S., & Baumgartner, L., M. (2007). Learning in adulthood" A comprehensive guide (3rd Edition). San Francisco : Jossey-Bass.
Rennemark, M., & Hagberg, B. (1997). Sense of coherence among the elderly in relation to their perceived life history in an Eriksonian perspective. Aging & Mental Health, 1(3), 221-229. Retrieved September 18, 2008 from the Academic Search Elite database.
Siegler, R., Ellis, S. (1996). Piaget on Childhood. Psychological Science, American Psychological Society, 7(4). Retrieved September 18, 2008 from the Academic Search Elite database.
Minnesota Higher Education Coordinating Board. (1981). Post-secondary Education for Part-time and Returning Students.
Smith, D. M., & Saunders, M. R. (1991). Other routes: Part-time higher education policy. Buckingham [England: Society for Research into Higher Education.
Tight, M. (1991). Higher Education: A part-time perspective. Society for Research into Higher Education and Open University Press.