1. Epidemiology of protozoan infections: The coccidia;Fayer;Vet. Parasitol.,1980
2. Coccidiosis;Barta,2001
3. A diagnostic chart for nine species of fowl coccidia;Reid,1979
4. Sporulation of oocysts and their survival in the external environment;Kheysin,1972
5. Life cycles and development of coccidia;Hammond,1973