M. T. AL-Zuhariy, D. S. Abdulhasan, S. Abdulmaged, and I. M. Shihab, “Using T Cell Lymphokines of Hyperimmunized Chickens with Salmonella enteritidis to Protect Neonatal Broiler Chicks Against Infectious Bronchitis Disease”, Int. J. Poult. Sci., vol. 17, no. 10, pp. 493–498, Sep. 2018, doi: 10.3923/ijps.2018.493.498.