Rashid, M., H. Luo, J. Akhter, M. Islam, M. Islam, M. Rahman, Y. Cao, and C. Xue. “Protection Effect of Vaxxitek HVT + IBD Vaccine Against Infectious Bursal Disease in Broiler Chickens”. Progressive Agriculture, vol. 24, no. 1-2, June 2014, pp. 69-78, doi:10.3329/pa.v24i1-2.19102.