| 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 |  | Content marketing strategies for dummies / by Stephanie Diamond . - Hoboken, NJ : John Wiley & Sons, Inc., [2016] . - xii, 386 pages : illustrations ; 23 cm Thông tin xếp giá: NVKT.00441, NVKT.00442 |
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