Ekkanant Mahaekkanant. (2007) Self-discrepancy, self-oriented motivation, and self-concept :. Thammasat University,:ม.ป.ท.Ekkanant Mahaekkanant. 2007. Self-discrepancy, self-oriented motivation, and self-concept :. ม.ป.ท.:Thammasat University,;Ekkanant Mahaekkanant. Self-discrepancy, self-oriented motivation, and self-concept :. ม.ป.ท.:Thammasat University, 2007. Print.