Study on the Occurrence of External and Gastrointestinal Parasites and Sub-clinical Mastitis on Crossbred Dairy Cows under Different Feeding and Management Conditions in the Central Highlands of Ethiopia. GJSFR [Internet]. 2014 Oct. 18 [cited 2026 Aug. 15];14(D7):37-40. Available from: https://www.journalofscience.org/index.php/GJSFR/article/view/1394