(3GdSff hGdeHJOYGJ GdeJYdbI HGdGPcGQ hGdUdhGJ (B/ s - (3eMeO YHOGdSdGe NVQ GdTbjQis ((3HjQhJ (B: s (3OGQ GdLjd , s, 1988)
Keywords: (3GdMOjKs; (3GdUdGIs; (3Gdabg GdGSdGeis; (3GdGMGOjK GdfHhjIs