| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_17_2_020.html | Chapter 1. calc_tutorial_17_2_020
| 50cd8b5ab11c0f8702000000 |
| http://digfir-published.macmillanusa.com/calc_tutorial/calc_tutorial_17_2_020_dlap.xml | DLAP questions | 50cd8b5ab11c0f8702000000 |