1. Arbuckle, J.L. (2007). Amos
TM
16 user’s guide. Chicago: SPSS Inc.
2. Arnold, M.L. (1993). The place of morality in the adolescent self (Unpublished doctoral dissertation). Harvard University, Cambridge, United States.
3. Barriga, A.Q., Gibbs, J.C., Potter, G.B., & Liau, A.K. (2001). How I Think (HIT) Questionnaire manual. Champaign: Research Press.
4. Barriga, A.Q., Morrison, E.M., Liau, A.K., & Gibbs, J.C. (2001). Moral cognition: Explaining the gender difference in antisocial behavior. Merrill-Palmer Quarterly, 47(4), 532–562. doi:
10.1353/mpq.2001.0020
5. Basinger, K.S., & Gibbs, J.C. (1987). Validation of the Sociomoral Reflection Objective Measure - Short Form. Psychological Reports, 61(1), 139–146.