https://www.expertrating.com/certifications/iPhone-Programming-OS-2-1-Test.asp
iPhone Programming OS 2.1 Test, iPhone Programming OS 2.1 Certification
ExpertRating offers an online iPhone Programming OS 2.1 Test. Candidates who pass the iPhone Programming OS 2.1 Test receive a iPhone Programming OS 2.1 Test...
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https://accu.org/bookreviews/2014/johnson_1871/
Professional iPhone Programming with MonoTouch and .NET/C#
ACCU - professionalism in programming
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