Oladele, Sunday Blessing, Paul Abdu, Andrew Jonathan Nok, and King Akpofure Nelson Esievo. “Survey for Serum Neuraminidase, Free and Erythrocyte Surface Sialic Acid from Chickens Vaccinated Against Newcastle Disease and the Unvaccinated Chickens Reared under Semi-Intensive Management System”. International Journal of Poultry Science 6, no. 12 (November 15, 2007): 933–936. Accessed September 21, 2025. https://ijpsjournal.org/index.php/ijps/article/view/881.