Duggan, K. (2013). Business gamification for dummies. Hoboken, N.J: John Wiley & Sons.
Trích dẫn kiểu ChicagoDuggan, Kris. Business Gamification for Dummies. Hoboken, N.J: John Wiley & Sons, 2013.
MLA CitationDuggan, Kris. Business Gamification for Dummies. Hoboken, N.J: John Wiley & Sons, 2013.
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