(3GdQMdI Gdi GdZQH ai GdQhGjI GdYQHjI GdMOjKI (B/ s - (3YUGe Hgis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdGOH GdebGQfs; (3JGQjN hfbOs