Faruque, M. R., J. P. Christensen, M. Bisgaard, B. C. Roy, and P. K. Biawas. “Factors Influencing the Vaccination Programme for Newcastle Disease in Bangladesh: Disease Outbreaks, Haemagglutination-Inhibition Titres and Production under Field Conditions”. Bangladesh Journal of Microbiology, vol. 24, no. 2, Oct. 2008, pp. 90-94, doi:10.3329/bjm.v24i2.1250.