(1997). . Iranian Journal of Information Processing and Management, 13(2), 31-38.
. "", Iranian Journal of Information Processing and Management, 13, 2, 1997, 31-38.
(1997). '', Iranian Journal of Information Processing and Management, 13(2), pp. 31-38.
, "," Iranian Journal of Information Processing and Management, 13 2 (1997): 31-38,
. Iranian Journal of Information Processing and Management, 1997; 13(2): 31-38.
