(3GdLh h JbdHGJg (B/ s - (3JGfjgjd, GjaGf QGjs; (3GdafOj, eMeO LeGd GdOjfs ((3GdbGgQI (B:s (3OGQ GdeYGQa,s, 1992)
Keywords: (3GdefGNs; (3GdWbSs; (3fGTFhf UZGQ (B(10-14) (3SfIs