Related Online Textbooks
Elements of Abstract and Linear Algebra by Edwin H. Connell.
Covers abstract algebra in general, but the focus is on linear algebra.
Abstract Algebra: Study Guide by John A. Beachy and William D. Blair.
Online notes for students who are working through the textbook Abstract Algebra.
Abstract Algebra: Theory and Applications by Tom Judson.
An open-source textbook designed to teach the principles and theory of abstract algebra to college juniors and seniors in a rigorous manner.
Related Journal Article
It is easy to determine whether a given integer is prime by Andrew Granville.
An American Mathematical Society (AMS) Bulletin article on primality testing (on which lecture 22 is partially based).