(3SHYhf ObjbI McGjGJ (B: s (3OQGSGJ COHjI (B/ s - (3GdYLjdj, YHO GdSdGes ((3WQGHdS (B( (3djHjG (B) :s (3GdefTCI GdYGeI ddfTQ h GdJhRjY h GdEYdGf,s, 1984)
Keywords: (3GdebGdGJ GdYGeI GdYQHjIs