| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_7_033.html | Chapter 1. | 50217dc8b11c0f8d07000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_7_033_dlap.xml | DLAP questions | 50217dc8b11c0f8d07000000 |