(3ebOeI ai Yde GdejcQhShdhLjG (B/ s - (3hdcfShf(B, (3L(B. (3a(B.s; (3fHjd GHQGgje MLGRis; (3YHOGdhgGH eMeO YHOGdMGaXs ([S.N] : (3OGQ GdeQjN ddfTQ , s, 1989)
Keywords: (3GdYdes; (3GdGMjGAs; (3GdGMjGA GdObjbIs