(3gPG HjGf ddfGS GdTHgGJ GdKdGKhf GdeKGQg dGfcGQ GdSfI GdfHhjI YQV hJfajP h fbV (B/ s - (3GdeWYj, YHO GdYXje GHQGgje eMeOs ((3GdbGgQI (B:s (3ecJHI hgHI,s, 1999)
Keywords: (3GdSfI GdfHhjI(B.s; (3OaY GdeWGYf Yf GdMOjK(B.s; (3Ydhe GdMOjK(B.s