Document Type : Scientific-research
. (2006). . The Mirror of Knowledge, 6(1), 13-.
. "", The Mirror of Knowledge, 6, 1, 2006, 13-.
. (2006). '', The Mirror of Knowledge, 6(1), pp. 13-.
, "," The Mirror of Knowledge, 6 1 (2006): 13-,
. . The Mirror of Knowledge. 2006;6(1):13- (In Persian).
