(1997). . Iranian Journal of Information Processing and Management, 12(4), 31-34.
. "", Iranian Journal of Information Processing and Management, 12, 4, 1997, 31-34.
(1997). '', Iranian Journal of Information Processing and Management, 12(4), pp. 31-34.
, "," Iranian Journal of Information Processing and Management, 12 4 (1997): 31-34,
. Iranian Journal of Information Processing and Management, 1997; 12(4): 31-34.
