(3eDQN GdYQGb GHf GdZhWj(B:s (3HMK aj GOhGQ GdJGQjN GdYQGbj ef eSJgd GdYUQ GdYHGSj Gdi GhGNQ GdYUQ GdeZhd (B/s - (3GdTHjHj ,eMeO QVGs ((3HZOGO(B:s (3eWHYI GdeLeY GdYdej GdYQGbj ,s, 1958)
Keywords: (3GdQLGd JQGLes