(The) gamification handbook : everything you need to know about gamification  

<br/><br/>21323 
<br/><br/> [Robert Hunter. u.p. Emereo Pty. Ltd., 2011] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer games - Programming
<br/><br/><label>LC Class. No.: </label>QA76.75  / C672Gam