Document Type : Original Article
. (2002). . Library and Information Sciences, 5(2), 137-142.
. "", Library and Information Sciences, 5, 2, 2002, 137-142.
. (2002). '', Library and Information Sciences, 5(2), pp. 137-142.
, "," Library and Information Sciences, 5 2 (2002): 137-142,
. . LIS. 2002;5(2):137-142 (In Persian).
