| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_2_27.html | Chapter 1. | 4fc262cfb11c0f762a000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_3_2_27_dlap.xml | DLAP questions | 4fc262cfb11c0f762a000000 |