(1973). . Iranian Journal of Information Processing and Management, 2(2), 12-20.
. "", Iranian Journal of Information Processing and Management, 2, 2, 1973, 12-20.
(1973). '', Iranian Journal of Information Processing and Management, 2(2), pp. 12-20.
, "," Iranian Journal of Information Processing and Management, 2 2 (1973): 12-20,
. Iranian Journal of Information Processing and Management, 1973; 2(2): 12-20.
