| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_4_3_053.html | Chapter 1. | 4fd22fa4b11c0fb259000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_4_3_053_dlap.xml | DLAP questions | 4fd22fa4b11c0fb259000000 |