| 1 |  | Business gamification for dummies / by Kris Duggan, CEO of Badgeville, and Kate Shoup . - Hoboken, N.J. : John Wiley & Sons, Inc., [2013] . - xviii, 284 pages : illustrations ; 23 cm Thông tin xếp giá: NVKT.00254 |
| 2 |  | Recommend this! : delivering digital experiences that people want to share / Jason Thibeault, Kirby Wadsworth . - Hoboken, New Jersey : Wiley, [2014] . - xiv, 258 pages : illustrations ; 24 cm Thông tin xếp giá: NVKT.00306 |
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