1.

図書
図書
1. Coaching softball effectively : the American Coaching Effectiveness Program level 1 softball book (: pbk.)
Steven D. Houseworth, Francine V. Rivkin
出版情報: Champaign, Ill. : Human Kinetics Publishers, c1985
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2.

図書
図書
2. Coaching baseball effectively : the American Coaching Effectiveness Program level 1 baseball book (pbk.)
Steven D. Houseworth
出版情報: Champaign, Ill. : Human Kinetics Publishers, c1986
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