| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab8_prelab2.html | Chapter 2. Carbon Metabolism: Rate of Photosynthesis
| 51e34a86b62f8b852e000001 |
| http://digfir-published.macmillanusa.com/hm_custom_osu/hmlsu_wischusen_f13_lab8_prelab2_dlap.xml | DLAP questions | 51e34a86b62f8b852e000001 |