Introduction to Modern Algebra.

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Hello again everyone. Sorry to keep bothering you for book recommendations. I would like to knw what book(s) I should get for an introductory course in algebra. I did try searching first, but it seems like everything I got was for grad. students. I am a 2nd year undergrad. Anyway, the topics to be covered are:
Introductions to groups, rings and fields. Applications to number theory, coding theory and geometry.
Thank-you very much.