. (1973). . Iranian Journal of Information Processing and Management, 2(2), 21-35.
. "", Iranian Journal of Information Processing and Management, 2, 2, 1973, 21-35.
. (1973). '', Iranian Journal of Information Processing and Management, 2(2), pp. 21-35.
, "," Iranian Journal of Information Processing and Management, 2 2 (1973): 21-35,
. . Iranian Journal of Information Processing and Management. 1973;2(2):21-35 (In Persian).
