https://books.google.com/books?id=19AABAAAQBAJ&printsec=frontcover&source=gbs_book_other_versions_r&cad=1
Holistic Mobile Game Development with Unity - Penny de Byl - Google Books
Holistic Mobile Game Development with Unity: An All-In-One Guide to Implementing Mechanics, Art Design and Programming for iOS and Android Games Master mobile...
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https://arongranberg.com/
Arongranberg.com – Game Development with Unity 3D
game development with unity