| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_17_3_013.html | Chapter 1. calc_tutorial_17_3_013 | 50cd8e83b11c0f8902000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_17_3_013_dlap.xml | DLAP questions | 50cd8e83b11c0f8902000000 |