(3GdQDjG GdGHOGYjI ai TYQ GdHjGJi (B/ s - (3YHOGdYRjR TQas ((3GdbGgQI (B: s (3hRGQI GdGYdGe , s, 1972)
Keywords: (3GdTYQGA GdYQHs; (3GdTYQ GdYQHi (B- (3JGQjN hfbOs; (3GdTYQ GdYQHi (B- (3GdYUQ GdMOjKs; (3YHOGdhgGH GdHjGJis