(3eaghe GdeTGQcI GdSjGSjI aj GdeZQH GdYQHj (B/s - (3GdefUa hfGSs ((3GdbGgQI (B: s (3GdgjFI GdeUQjI GdYGeI ddcJGH,s, 1991)
(3jJVef EQLGYGJ HHdjhLQGajg aj MhGTj GdUaMGJ(B.s
Keywords: (3GdfXe GdSjGSjIs