(1963). Service Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle. EKB Journal Management System, 3(1), 45-57. doi: 10.21608/ejap.1963.124421
. "Service Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle". EKB Journal Management System, 3, 1, 1963, 45-57. doi: 10.21608/ejap.1963.124421
(1963). 'Service Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle', EKB Journal Management System, 3(1), pp. 45-57. doi: 10.21608/ejap.1963.124421
Service Period, Calving Interval, Lactation Period and Their Effect on Milk Yield in Sudanese Dairy Cattle. EKB Journal Management System, 1963; 3(1): 45-57. doi: 10.21608/ejap.1963.124421