(1963). Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle. EKB Journal Management System, 3(1), 27-43. doi: 10.21608/ejap.1963.124837
. "Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle". EKB Journal Management System, 3, 1, 1963, 27-43. doi: 10.21608/ejap.1963.124837
(1963). 'Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle', EKB Journal Management System, 3(1), pp. 27-43. doi: 10.21608/ejap.1963.124837
Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle. EKB Journal Management System, 1963; 3(1): 27-43. doi: 10.21608/ejap.1963.124837