| 1 | [1] Shailendra Kumar Singh, Shanthy Sundaram, Kaushal Kishor, 2014, Photosynthetic Microorganisms: Mechanism For Carbon Concentration, Springer, UK ISBN: 978-3-319-09122-8 (Print) 978-3-319-09123-5 (Online) |
| 2 | [2] Blankenship, R.E., Madigan, Michael T., Bauer, C.E. (Eds.), 1995, Anoxygenic Photosynthetic Bacteria, ISBN 978-0-306-47954-0 |