(3GdThGgO GdTYQjI aj cJGH OdGFd GdEYLGR ddTjN YHO GdbGgQ GdLQLGfj (B: s (3JhKjb hJMdjd hfbO (B/ s - (3GdXgGQ, fLGM CMeOs ((3ecI GdecQeI (B: s [ (3ZjQ eYQa (B]s, 1996)
(3QSGdI OcJhQGIs
Keywords: (3GdHdGZI(B. s; (3GdEYLGR GdHdGZj(B. s; (3GddZI GdYQHjI(B. s