References
Atherton J S (2011) Learning and Teaching; Piaget’s developmental theory [On-line: UK] retrieved 12 November 2011 from http://www.learningandteaching.info/learning/piaget.htm
Piaget, J. (1952). Autobiography. In E. Boring (ed) History of psychology in autobiography. Vol. 4. Worcester, MA: Clark University Press.
McDevitt, T., & Ormrod, J. (2006). Piaget’s Four Stage of Cognitive Development. Retrieved from Education.com: http://www.education.com/reference/article/piaget-four-stages-cognitive-development/
Piaget, J. (1964), Part I: Cognitive development in children: Piaget development and learning. Journal of Research in Science Teaching, 2: 176–186. doi: 10.1002/tea.3660020306
W.C. Crain. (1985). Theories of development. Prentice-Hall. pp. 118-136.
Tomei, L. (2004). An examination of humanism. Retrieved from Learning Theories: http://academics.rmu.edu/~tomei/ed711psy/h_kohl.htm
Kohlberg, L., Mayer, R., Development as the aim of education, Harvard Educational Review, Vol 42(4), 1972, 449-496.
Kohlberg, L. (1973). The claim to moral adequacy of a highest stage of moral judgment. Journal of Philosophy, 70(18), 630–646.
Cherry, K. (2008). Child Developmental Theories. Retrieved from About.Com: http://psychology.about.com/od/developmentalpsychology/a/childdevtheory.htm
Berk, Laura E. (2009). Child Development. 8th ed. United States of America: Pearson Education, Inc.
Baldwin, James Mark. (1913). History of psychology: A sketch and an interpretation. London: Watts.