Mushtaq T. B. Al-Zuhariy. “EVALUTION OF THE BEST VACCINAL ROUTES AGAINST NEWCASTLE IN THE PRODUCTION STAGE OF LAYING HENS”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, vol. 54, no. 3, June 2023, pp. 748-54, https://doi.org/10.36103/ijas.v54i3.1757.