N Kwanashie, C. ., K. . Oputeh, and E. . Ochefije Ngbede. “Retrospective Studies of the Trends of Occurrence of Ruminant Mastitis Pathogens in a Veterinary Teaching Hospital in Northwest, Nigeria”. Scientific Journal of Animal Science, vol. 1, no. 3, Sept. 2012, pp. 75-80, http://sjournals.com/index.php/sjas/article/view/1124.