Cummings, S. a. . A. (2015). Strategy Builder: How to Create and Communicate more effective strategies.
シカゴスタイル引用形Cummings, Stephen and Angwin. Strategy Builder: How to Create and Communicate More Effective Strategies. Wiley India Pvt Ltd., New Delhi, 2015.
MLA引用形式Cummings, Stephen and Angwin. Strategy Builder: How to Create and Communicate More Effective Strategies. 2015.
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