(3JdHjS GHdjS (B/ s - (3GHf GdLhRi (B: (3GHhGdaQL LeGd GdOjf YHOGdQMef Hf Ydi Hf eMeO Hf Ydi GdbQTi GdHZOGOis ((3HjQhJ (B: s (3OGQ hecJHI GdgdGd ddWHGYI hGdfTQ , s, 1991)
Keywords: (3Gdabg GdGSdGeis; (3GdGSdGe (B- (3GMcGes; (3GdGSdGe (B- (3GNdGbs