Kemal Kedir Elemo. 2018. “Prevalence, Risk Factors and Major Bacterial Causes of Bovine Mastitis in Smallholder Dairy Farms in and Around Sinana District, Bale Zone, South Eastern Ethiopia”. Global Journal of Science Frontier Research 18 (D4):31-43. https://journalofscience.org/index.php/GJSFR/article/view/2275.