| URL | Title | Id |
|---|---|---|
| http://digfir-published.macmillanusa.com/hm_custom_osu/potter_50324_ch2_f12.html | Chapter 2. | 51fbe4bb757a2e103c000008 |
| http://digfir-published.macmillanusa.com/hm_custom_osu/potter_50324_ch2_f12_dlap.xml | DLAP questions | 51fbe4bb757a2e103c000008 |