Mushtaq T. B. Al-Zuhariy 2023. EVALUTION OF THE BEST VACCINAL ROUTES AGAINST NEWCASTLE IN THE PRODUCTION STAGE OF LAYING HENS. IRAQI JOURNAL OF AGRICULTURAL SCIENCES. 54, 3 (Jun. 2023), 748–754. DOI:https://doi.org/10.36103/ijas.v54i3.1757.