Alvarez-Cobelas, M. & Gallardo, T. 1988: Catálogo de las algas continentales españolas V. Cyanophyceae Schaffner 1909. -Acta Botanica Malacitana 13: 53-76.
Caraus, I. 2002: The algae of Romania. -Studii si Cercetari, Universitatea Bacau, Biologie 7: 1-694.
Day, S. A., Wickham, R. P., Entwisle, T. J. & Tyler, P. A. 1995: Bibliographic check-list of non-marine algae in Australia. -Flora of Australia Supplementary Series 4: vii + 276.
Desikachary, T. V. 1959: Cyanophyta. -New Delhi: Indian council of agricultural research. 686 pp.
Elenkin, A. A. 1938: Monographic algarum cyanophycearum aquidulcium et terrestrium infinibus URSS inventarum, vol. 1, 675 pp. -Acad. Neuk URSS. Moscow, Leningrad.
Geitler, L. 1932: Cyanophyceae in Rabenhorst΄s Kryptogamenflora. -Leipzig. 14: 1196 pp.
Hu, H. & Wei, Y. 2006: The freshwater algae of China. Systematics, taxonomy and ecology. pp. 1023.
John, D. M., Whitton, B. A. & Brook, A. 2002: The freshwater algal flora of the British Isles: An identification guide to freshwater and terrestrial algae. -Cambridge University Press. 714 pp.
Kapustka, L. A., & Rosowski, J. R. 1976: The response of Cylindrospermum species to different sources of nitrogen. -Proc. Okla. Acad. Sci. 56: 49-52.
Komárek, J. 1989: Studies on the cyanophytes of Cuba. -Folia Geobot. Phytotax. 24: 171-206.
Leghari, M.K., Qureshi, R.M., Mashiatullah, A., Yaqoob, N. & Javed, T. 2005: Harmful algal species from various freshwater localities of Pakistan. -Int. J. Phycol. Phycochem. 1 (2): 199-206.
Nowruzi, B. & Ahmadimoghadam, A. 2006: Two new records of heterocystus cyanobacteria (Nostocaceae) from paddy fields of Golestan Province. -Iran. Journ. Bot. 11 (2): 170-173.
Prescott, G. W. 1970: Algae of the western great lakes area. -WM. C. Brown company publishers. 977 pp.
Rangaswamy, G. 1996: Agricultural microbiology. -Asia publishing house, Bombay, p. 54-76.
Shariatmadari, Z. & Riahi, H. 2010: New records of heterocystous cyanophyta from paddy fields of Iran. –Rostaniha 11 (2): 113-119.
Sherwood, A. R. 2004: Bibliographic checklist of the nonmarine algae of the Hawaiian Islands. Records of the Hawaii Biological Survey for 2003. Bishop Museum Occasional Papers 80: 1-26.
Stanier, R. Y., Kunisawa, R., Mandal, M. & Cohen-Bazire, G. 1971:Purification and properties of unicellular blue-green algae (Order. Chroococcales). -Bacteriol. Rev. 35: 171-305.
Wehr, J. D., Sheath, R. G. & Thorp, J. H. 2002: Freshwater algae of North America: Ecology and classification. -Aquatic Ecology Press. 917 pp.
Whitford, L. A., & Schumacher, G. J. 1973: A manual of fresh-water algae. -Sparks Press, Raleigh, N.C. 337 pp.