Document Type : Scientific-research
(2005). . The Mirror of Knowledge, 5(3), 39-.
. "", The Mirror of Knowledge, 5, 3, 2005, 39-.
(2005). '', The Mirror of Knowledge, 5(3), pp. 39-.
, "," The Mirror of Knowledge, 5 3 (2005): 39-,
. The Mirror of Knowledge, 2005; 5(3): 39-.