(3ehLR JGQjN GdHGTG GdUZjQ(B: (3QhGjI (B/ s - (3ajUd NQJTs ([S.N] : (3QjGV GdQjS ddcJH hGdfTQ , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdbUU GdYQHjIs