(3CHMGK aj JGQjN GdTQGFY (B: s (3GdTQjYI GdESdGejI (B/s - (3Ydj HOhjs; (3LGeYI GdbGgQIs (3cdjI GdMbhbs ((3GdbGgQI(B:s (3cdjI GdMbhb (B- (3LGeYI GdbGgQI ,s, 1931)
1
Keywords: (3JGQjN GdTQGFYs; (3GdbGfhf GdQheGfjs; (3YUQ GdLGgdjIs; (3GdYUQ GdYdejs; (3fXGe GdbUGUs