(3GdHMK GdYdej efGgLg h JbfjGJg (B/s - (3YeQ , eMeO RjGf s ((3LOI (B:s (3OGQ GdTQhb ,s, 1969)
Keywords: (3JbfjGJs; (3GdHMKs; (3GdYdej s; (3efGgLs