Alvine C. Kengne-Fokam, Hugues C. Nana-Djeunga, Félicité F. Djuikwo-Teukeng & Flobert Njiokou (2016). "Analysis of mating system, fecundity, hatching and survival rates in two Schistosoma mansoni intermediate hosts (Biomphalaria pfeifferi and Biomphalaria camerunensis) in Cameroon.". Parasites Vectors 9(10): 2-9. https://doi.org/10.1186/s13071-015-1285-4
A. J. de Winter, N. Vastenhout (2013). "Revision of the Afrotropical Land Snail Genus Avakubia Pilsbry, 1919, with Description of Pseudavakubia Gen. n. and Eleven New Species (Gastropoda: Pulmonata: Streptaxidae)". African Invertebrates 54(2): 605-663. https://doi.org/10.5733/afin.054.0215
De Winter A. J., Gomez B. J. & Prieto C. E.(1999). "Sinistrexcisa, a New Genus of Land Snail from Central West Africa with Four New Species (Gastropoda: Pulmonata: Streptaxidae)". Journal of Molluscan Studies65(2): 209-221. doi:10.1093/mollus/65.2.209. page 209.
Appleton C., Ghamizi M., Jørgensen A., Kristensen T. K., Stensgaard A-S. & Van Damme D. (2009). Lymnaea natalensis. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.4. <www.iucnredlist.org>. Downloaded on 4 December 2010.