Costa, L. C. (2006). Personal strivings, spirituality and academic achievement.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCosta, Liza C. Personal Strivings, Spirituality and Academic Achievement. 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCosta, Liza C. Personal Strivings, Spirituality and Academic Achievement. 2006.
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