Adams, G. R., & Berzonsky, M. D. (2007). Blackwell handbook of adolescence. Malden, MA: Blackwell Pub.
Hoose, J. V., Strahan, D. B., LEsperance, M., & Hoose, J. V. (2001). Promoting harmony: Young adolescent development and school practices. Westerville, OH: National Middle School Association.
Irinyi, M. (n.d.). The Third Plane of Development: Ages 12-18 - Montessori Philosophy. Retrieved from
http://montessoritraining.blogspot.com/2007/07/montessori-philosophy-third-plane-of.html
Mcleod, S. (2013, February 05).
Kohlberg's Stages of Moral Development. Retrieved from https://www.simplypsychology.org/kohlberg.html
Travis, A. (n.d.). The Development of Morality. Retrieved from https://amiusa.org/wp-content/uploads/2012/03/amiusa-the-development-of-morality.pdf
American Montessori Institute
Hoose, J. V., Strahan, D. B., LEsperance, M., & Hoose, J. V. (2001). Promoting harmony: Young adolescent development and school practices. Westerville, OH: National Middle School Association.
Irinyi, M. (n.d.). The Third Plane of Development: Ages 12-18 - Montessori Philosophy. Retrieved from
http://montessoritraining.blogspot.com/2007/07/montessori-philosophy-third-plane-of.html
Mcleod, S. (2013, February 05).
Kohlberg's Stages of Moral Development. Retrieved from https://www.simplypsychology.org/kohlberg.html
Travis, A. (n.d.). The Development of Morality. Retrieved from https://amiusa.org/wp-content/uploads/2012/03/amiusa-the-development-of-morality.pdf
American Montessori Institute