<p>How do you guys refer back to really old information that you have forgotten when it is presented in the chapters you are reading now? Should I find it in my textbook, the AMSCO prep book, on the internet, or some other source?</p>
<p>How do you guys refer back to really old information that you have forgotten when it is presented in the chapters you are reading now? Should I find it in my textbook, the AMSCO prep book, on the internet, or some other source?</p>