(3GdfXe GdSjGSjI (B:s (3GdfXQjI GdYGeI ddfXe GdSjGSjI (B/s (3GdLRA GdChd s - (3KQhJ HOhjs ((3GdbGgQI (B:s (3OGQ GdfgVI GdYQHjI (B,s, 1964)
. 404-397 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU CZdHg HGddZI GdYQHjI HYV GdfUhU GdEfLdjRjI hGdaQfSjIs
Keywords: (3GdbGfhf GdOSJhQjs