Document Type : Original Article
. (2001). . Library and Information Sciences, 4(2), 71-79.
. "", Library and Information Sciences, 4, 2, 2001, 71-79.
. (2001). '', Library and Information Sciences, 4(2), pp. 71-79.
, "," Library and Information Sciences, 4 2 (2001): 71-79,
. . LIS. 2001;4(2):71-79 (In Persian).
