1. An overview of the use of food-based Newcastle disease vaccine in Malaysia;Ibrahim,1992
2. Mucosal immunity in chickens vaccinated with the V4 strain of Newcastle disease virus;Jayawardane;Vet. Microbiol.,1995
3. Oral fowlpox vaccination in chickens;Jieyuan;J. Vet. Med., B,1992
4. Yesterday, today and tomorrow in virology;Koprowski;Intervirology,1993
5. Avian coccidiosis: The administration of capsulated oocysts;Norton;Parasitol.,1986