| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_4_042.html | Chapter 1. | 4fad8513b11c0f4e62000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_4_042_dlap.xml | DLAP questions | 4fad8513b11c0f4e62000000 |