(3GdGSYGa GdGhdi(B: (3ddYGedjf ai GdQYGjI GdUMjI ddeLJeY ai GdHdOGf GdfGejI (B/ s - (3O(B.(3G(B. (3YHOGddgs; (3ejhQjc ScjJs ([S.N] : (3Odehf ddfTQ , s, 1989)
Keywords: (3GdQYGjI GdUMjIs; (3GdOhd GdfGejIs; (3GdGSYGaGJ GdGhdjIs