| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_5_11.html | Chapter 1. | 4fc66d1eb11c0fc835000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_5_11_dlap.xml | DLAP questions | 4fc66d1eb11c0fc835000000 |