(2015). State of the Agricultural Sector Technical Efficiency: The Case Study of African Countries. EKB Journal Management System, 25(العدد الرابع ديسمبر B), 2126-2141. doi: 10.21608/meae.2015.136827
. "State of the Agricultural Sector Technical Efficiency: The Case Study of African Countries". EKB Journal Management System, 25, العدد الرابع ديسمبر B, 2015, 2126-2141. doi: 10.21608/meae.2015.136827
(2015). 'State of the Agricultural Sector Technical Efficiency: The Case Study of African Countries', EKB Journal Management System, 25(العدد الرابع ديسمبر B), pp. 2126-2141. doi: 10.21608/meae.2015.136827
State of the Agricultural Sector Technical Efficiency: The Case Study of African Countries. EKB Journal Management System, 2015; 25(العدد الرابع ديسمبر B): 2126-2141. doi: 10.21608/meae.2015.136827