Barna, G. (2003). Transforming children into spiritual champions. Regal.
Tohutoru Kātū Chicago (17th ed.)Barna, George. Transforming Children into Spiritual Champions. Califonia, USA: Regal, 2003.
Tohutoro MLA (9th ed.)Barna, George. Transforming Children into Spiritual Champions. Regal, 2003.
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