アカウキクサ属
Eduard Strasburger (1873). Über Azolla. Leipzig: Verlag von Ambr. Abel.. https://books.google.co.jp/books?id=OY0ZAAAAYAAJ&printsec=frontcover&hl=ja&source=gbs_ge_summary_r&redir_esc=y#v=onepage&q&f=false
Kunja Satapathy, Pradeep Chand (2010). Azolla: A Biofertilizer: Sustainable Agriculture and Environmental Protection. VDM Verlag Dr. Müller. ISBN 978-3-63919138-7
Workshop on Azolla Use (1985 : Fujian, China). (1987). Azolla Utilization - Proceedings of the Workshop on Azolla Use. Los Baños, Laguna: Fujian Academy of Agricultural Sciences. ISBN 971-104-179-0. http://dspace.irri.org:8080/dspace/bitstream/10269/279/2/9711041790_content.pdf