(3GdCfgGQ GdYXjeI aj GdYGde (B/ s - (3ghGjJ, Bf JjQjs; (3EHQGgje, eMeO YHO GdaJGMs ((3GdbGgQI (B:s (3OGQ GdeYGQa,s, 1992)
Keywords: (3GdCfgGQs; (3fGTFhf cHGQ (B( 15 - 18 (3SfI (B)s