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6President Joel Read, personal communication [R].Nov. 4th, 1999.
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8Astin, A. W. Involvement: The cornerstone of Excellence. Change[J]. 1985, 17(4),35-39.
9Light, R.J. Making the most of College [D]. Cambridge, MA: Havard University Press, 2001. 26.
10Krumboltz J. The Relation of Extracurricular Participation to Leadership Critiria [J]. Personnel and Guidance Journal, 1957. 35, 307-313.