Charya, M. A. Singara (2015). "Fungi: An Overview". In Bahadur, Bir; Rajam, Manchikatla Venkat; Sahijram, Leela; Krishnamurthy, K. V. (eds.). Plant Biology and Biotechnology. Springer. pp. 197–215. doi:10.1007/978-81-322-2286-6_7. ISBN978-81-322-2286-6.
Overmann, Jörg; Garcia-Pichel, Ferran (2006). "The Phototrophic Way of Life". In Dworkin, Martin (ed.). The Prokaryotes. Vol. 2: Ecophysiology and Biochemistry (3rd ed.). Springer. pp. 203–257. doi:10.1007/0-387-30742-7_3. ISBN978-0-387-25492-0.