Document Type : Scientific-research
(2005). . The Mirror of Knowledge, 5(4), 22-.
. "", The Mirror of Knowledge, 5, 4, 2005, 22-.
(2005). '', The Mirror of Knowledge, 5(4), pp. 22-.
, "," The Mirror of Knowledge, 5 4 (2005): 22-,
. The Mirror of Knowledge, 2005; 5(4): 22-.
)