The immune status of chicken flocks is three commercial farms for newcastes disease and avian infectious bronchitis - NOOR Bakry b Mat Darus (Serdang : UPM, 1985)
Thesis (Doctor of veterinary Medicine)-UPM, 1985
Keywords: Flocks-Vaccination-Disease -- Dissertation, thesis, etc; Infectious bronchitis in poultry-Disease -- Dissertation , thesis, etc; Poultry-vaccination -- Dissertations, thesis, etc