Kemboi D C, Chegeh H W, Bebora L C, Maingi N, Nyaga P N, Mbuthia P G, Njagi L W and Githinji J M 2013:
Seasonal Newcastle disease antibody titer dynamics in village chickens of Mbeere District, Eastern Province, Kenya.
Livestock Research for Rural Development. Volume 25, Article #181.
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, from http://www.lrrd.org/lrrd25/10/kemb25181.htm