(3GdSff GdUZjQI (B/ s - (3GdHgjbj, CHh HcQ CMeO Hf GdMSjf Hf Ydj s (3GdeJhai SfI (B458 (3g,s; (3bdYLj, YHO GdeYWj Cejfs ((3cQGJTj (B:s (3LGeYI GdOQGSGJ GdESdGejI,s, 1989)
Keywords: (3GdESdGe(B.s; (3GdMOjK GdfHhj(B.s; (3Gdabg GdESdGej(B.s