(3GdLQGFe GdeVQI HGdeUdMI GdYGeI(B/s - (3YHOGdegjef HcQs ((3GdbGgQI (B:s (3cJHI SjO YHOGddg hgHg (B,s, 1966)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdLfGFi s; (3GdLQGFe GdeVQI HGdeUdMI GdYGeIs