Tabidi, M., Makkawi, A., & Ali, A. (2004). Comparative Evaluation of Haemagglutination Inhibition Test and Enzyme-linked Immunosorbent Assay for Detection of Antibodies Against Newcastle Disease Vaccine in Broiler Chicks. International Journal of Poultry Science, 3(10), 668–670. https://doi.org/10.3923/ijps.2004.668.670