Dawson, J. O. (2008). "Ecology of Actinorhizal Plants". Nitrogen-fixing Actinorhizal Symbioses. Nitrogen Fixation: Origins, Applications, and Research Progress. 6. Springer. पपृ॰ 199–234. आई॰ऍस॰बी॰ऍन॰978-1-4020-3540-1. डीओआइ:10.1007/978-1-4020-3547-0_8.
Doyle, Jeff J. (1998). "Phylogenetic perspectives on nodulation: evolving views of plants and symbiotic bacteria". Trends in Plant Science. 3 (12): 473–778. डीओआइ:10.1016/S1360-1385(98)01340-5.