SHAWKY, B. (1983). PROBLEM OF ROLE CONCDPT. EKB Journal Management System, 3(1), 214-220. doi: 10.21608/bfa.1983.235925
BADRIA SHAWKY. "PROBLEM OF ROLE CONCDPT". EKB Journal Management System, 3, 1, 1983, 214-220. doi: 10.21608/bfa.1983.235925
SHAWKY, B. (1983). 'PROBLEM OF ROLE CONCDPT', EKB Journal Management System, 3(1), pp. 214-220. doi: 10.21608/bfa.1983.235925
SHAWKY, B. PROBLEM OF ROLE CONCDPT. EKB Journal Management System, 1983; 3(1): 214-220. doi: 10.21608/bfa.1983.235925