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For introductory calc, I like the text by Larson/Hostetler/Edwards. It is not terribly mathematically rigorous, but this may be a good thing when you are first covering the material and the proofs are very clear. This is a common choice in schools and will prepare you well for the AP examinations. Buy a used copy of the earliest edition you can find - this book has not improved with age.
There are also some excellent free calculus texts available online:
Free Online Course Materials | Textbook | MIT OpenCourseWare