(3GdJGQjN GdSjGSj ddOhdI GdYQHjI YUQ GdNdaGA GdGehjjf (B:s - (3eGLO ,YHO GdefYe s ((3HjQhJ (B:s (3ecJHI GdLGeYI GdYQHjI ,s, 1966)
Keywords: (3GdYUQ GdGehj s