Document Type : Original Article
. (2000). . Library and Information Sciences, 3(2), 159-164.
. "", Library and Information Sciences, 3, 2, 2000, 159-164.
. (2000). '', Library and Information Sciences, 3(2), pp. 159-164.
, "," Library and Information Sciences, 3 2 (2000): 159-164,
. . LIS. 2000;3(2):159-164 (In Persian).
