Duggan, K. (2013). Business gamification for dummies. John Wiley & Sons, Inc.
シカゴスタイル引用形Duggan, Kris. Business Gamification for Dummies. John Wiley & Sons, Inc, 2013.
MLA引用形式Duggan, Kris. Business Gamification for Dummies. John Wiley & Sons, Inc, 2013.
警告: この引用は必ずしも正確ではありません.