| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_7_012.html | Chapter 1. | 4fb044fab11c0fcf67000004 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_1_7_012_dlap.xml | DLAP questions | 4fb044fab11c0fcf67000004 |