1. Frenkel,J.K. (1973). Toxoplasmosis, parasite life cycle, pathology and Immunology. The coccidia,
2. Emeria, Isospora, Toxoplasma and Related Genera, ed.Hammond,D.M. and Long PL.Unv.Park Press.
3. Baltimore, Butter-worth, London,p.143.
4. Jacobs, L. (1974). New Knowledge of Toxoplasma and toxplasmosis. Adv parasitol. 11:631-669.
5. Dubey, J.P.(1977) Toxoplasma.Hammondia, Besnotia, Sarcocystis and others tissue-cyst forming coccidia of man and animals in Kreier,