Odoemelam, V. U., I. C. . Unamba-Oparah, and C. . Unamba-Oparah. “Retrospective Study on the Occurrence of Infectious Bursal Disease and Newcastle Disease in Orlu, Imo State”. Nigerian Journal of Animal Production, July 2024, pp. 1415-8, doi:10.51791/njap.vi.6573.