RT Article T1 Relative effectiveness of values clarification and symbolic modeling in enhancing the moral values of adolescents in selected Nigerian schools JF Journal of research on Christian education VO 14 IS 1 SP 95 OP 116 A1 Omeonu, Chimezie A. A1 Matthews, Lionel LA English PB Routledge, Taylor & Francis Group YR 2005 UL https://ixtheo.de/Record/1645571440