Gaya APA

Mathias, G, J. (1987). Moral development and psychosocial development a comparative study of the developmental theories of Lawrence Kohlberg and Erik H.Erikson Disertasi . Roma: PULAcademia Alfonsiana.

Gaya MLA

Mathias, Gerald, John.. "Moral development and psychosocial development a comparative study of the developmental theories of Lawrence Kohlberg and Erik H.Erikson Disertasi ". Roma: PULAcademia Alfonsiana, 1987. Buku.