(3GdJjGQGJ GdacQjI hGdMQcGJ GdeYGUQI (B/ s - (3GMeO YHOGdQMje GdSGjMs ([S.N] : (3OGQ GdWHGYI GdeMeOjI , s, 1991)
Keywords: (3GdGSdGe hGdMVGQIs; (3GdadSaI GdGSdGejIs