کتاب های Gregory Trefry
![Casual Game Design: Designing Play for the Gamer in ALL of Us](http://cdn.ketabkoo.com/covers/1/108645-n.jpg)
Casual Game Design: Designing Play for the Gamer in ALL of Us
Gregory Trefry, 2010![Casual Game Design: Designing Play for the Gamer in ALL of Us](http://cdn.ketabkoo.com/covers/1/108647-n.jpg)
Casual Game Design: Designing Play for the Gamer in ALL of Us
Gregory Trefry, 2010![Casual Game Design: Designing Play for the Gamer in ALL of Us](http://cdn.ketabkoo.com/covers/1/108648-n.jpg)
Casual Game Design: Designing Play for the Gamer in ALL of Us
Gregory Trefry, 2010![Casual Game Design: Designing Play for the Gamer in ALL of Us](http://cdn.ketabkoo.com/covers/1/108649-n.jpg)