Document Type : Original Article
. (2001). . Library and Information Sciences, 4(3), 121-127.
. "", Library and Information Sciences, 4, 3, 2001, 121-127.
. (2001). '', Library and Information Sciences, 4(3), pp. 121-127.
, "," Library and Information Sciences, 4 3 (2001): 121-127,
. . LIS. 2001;4(3):121-127 (In Persian).
