REFERENCES
- Courtois, G., and Wanson, M. (1949). Biomphalaria alexandrina choanomphala V. Martens 1879 est un des h&oicirc;tes intermédiaires de Schistosoma mansoni au Lac Albert. Ann. Soc. belge Méd. trop., 29, 447.
- Cridland, C. C. (1955). The experimental infection of several species of African freshwater snails with Schistosoma mansoni and S. haematobium. J. trop. Med. Hyg., 58, 1.
- Cridland, C. C. (1957). Further experimental infection of several species of East African freshwater snails with Schistosoma mansoni and S. haematobium. Ibid., 60, 18.
- Fain, A. (1953). Contribution à l'étude des formes larvaires des trématodes au Congo belge et spécialement de la larve de Schistosoma mansoni. Mém. Inst, colon, belge Sci. not. 8°, 22, fasc. 5.
- Harry, H. W., Cumbie, B. G., and Martinez De Jesus, J. (1957). Studies on the quality of fresh waters of Puerto Rico relative to the occurrence of Australorbis glabratus (Say). Amer. J. trop. Med. Hyg., 6, 313.
- Nelson, G. S. (1958). Schistosoma mansoni infection in the West Nile District of Uganda. Part II: The distribution of S. mansoni with a note on the probable vectors. E. Afr. med. J., 35, 335.
- Schwetz, J. (1949). Planorbis choanomphalus du Lac Albert est transmetteur de Schistosoma mansoni. Ann. Soc. belge Méd. trop., 29, 491.
- Vogel, H., and Minning, W. (1949). Hüllenbildung bei Bilharzia-Cercarien im Serum bilharzia-infizierter Tiere und Menschen. Zbl. Bakt., I, Orig., 153, 91.