(3OQGSGJ ai GdQhGjI GdYQHjI (B/ s - (3GfLjd HWQS SeYGfs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1987)
Keywords: (3GdGOH GdYQHis; (3eUQs; (3GdbUI GdYQHjIs; (3JGQjN hfbOs