Please tell me best books for CAPM exam

Hi,

Please can anyone let me know what are the best books to read to clear the CAPM exam in first attempt? I just completed my course from simplilearn and now planning to appear for the exam in September. Is it too much time to prepare for CAPM ? how much time should i give to prepare for it and clear the exam in first go?

Thanks,
Saurabh Sundariyal