(3Gdbje GdESdGejI hCKQgG aj GdeLJeY (B/s - (3YHO GdMcje Ydj GdeZQHjs ((3GdbGgQI (B:s (3GdeLdS GdCYdi ddTFhf GdESdGejI,s, 1971)
(3jTQa Ydi EUOGQgG eMeO Jhajb YhjVI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdCNdGb GdESdGejIs