| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_1_044.html | Chapter 1. | 4fa6f159b11c0f874c000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_1_044_dlap.xml | DLAP questions | 4fa6f159b11c0f874c000000 |