Other books

1. http://gfif.udea.edu.co/book

2. ftp://gfif.udea.edu.co/Books

3. Text for Radical Freshman Physics:

Many physics teachers have recognized that the standard, calculus-based freshman physics course has stagnated, with texts today looking much like they did 50 years ago and student interest at a low point. A reform movement has developed in the last decade to attempt to remedy this situation, with some reformers trying to teach the conventional materials in an unconventional way, and others trying to introduce new material.

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