| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab8_prelab3.html | Chapter 2. Carbon Metabolism: Rate of Photosynthesis
| 51e34c20b62f8b8a21000001 |
| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab8_prelab3_dlap.xml | DLAP questions | 51e34c20b62f8b8a21000001 |