(3eDQN GdYQGb GHf GdZhWj (B:s (3HMK aj GOhGQ GdJGQjN GdYQGbj ef eSJgd GdYUQ GdYHGSj Gdi GhGNQ GdYUQ GdeZhd (B/s - (3GdTHjHj , eMeO QVG s ((3HZOGO(B:s (3eWHYI GdJajV ,s, 1950)
Keywords: (3GdQLGd (B-(3JQGLe s