(3MbGFb GdGSdGe Hjf GdLgd hGdLMhO (B/ s - (3YHOGdeLjO UHMs ([S.N] : (3OGQ GdhaGA ddWHGYI hGdfTQ hGdJhRjY , s, 1987)
Keywords: (3GdTQjYI GdGSdGejIs; (3Gdabg GdGSdGeis; (3GdGSdGe hGdSjGSIs