(3ZGjI GdGMSGf ai Ndb GdGfSGf (B/ s - (3eQRb Ydi GHQGgje (B((3eMbb(B)s; (3GdSjhWi (B: (3LdGd GdOjf GHhGdaVd YHOGdQMef Hf GHi HcQ Hf eMeO GdNVjQis ([S.N] : (3OGQ GdaVjdI , s, 1991)
Keywords: (3GdGfSGfs; (3GdNdbs