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Elementary Algebra by Harold R. Jacobs Mathematics, a Human Endeavor by Harold R. Jacobs Geometry by Harold R. Jacobs Geometry by Harold R. Jacobs A Teacher's Guide to Elementary Algebra by Harold R. Jacobs Answers to Exercises for Geometry by Harold R. Jacobs Jacobs Geometry by Harold R. Jacobs Teacher's Guide to Geometry by Harold R. Jacobs Mathematics by Harold R. Jacobs Instructor's Guide to Mathematics by Harold R. Jacobs


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