| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_2_015.html | Chapter 1. | 4fa7278eb11c0f874c000001 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_2_015_dlap.xml | DLAP questions | 4fa7278eb11c0f874c000001 |