Document Type : Original Article
. (1999). . Library and Information Sciences, 2(1), 42-52.
. "", Library and Information Sciences, 2, 1, 1999, 42-52.
. (1999). '', Library and Information Sciences, 2(1), pp. 42-52.
, "," Library and Information Sciences, 2 1 (1999): 42-52,
. . LIS. 1999;2(1):42-52 (In Persian).
