Document Type : Original Article
. (1999). . Library and Information Sciences, 2(3), 71-90.
. "", Library and Information Sciences, 2, 3, 1999, 71-90.
. (1999). '', Library and Information Sciences, 2(3), pp. 71-90.
, "," Library and Information Sciences, 2 3 (1999): 71-90,
. . LIS. 1999;2(3):71-90 (In Persian).
