(3fjd GdeQGOef JaSjQ BjGJ GdEMcGe (B/s - (3eMeO UOjb MSf NGfs ([(3ecGf GdfTQ ZjQ eMOO(B] :s (3eWHYI GdQMeGfjI,s, 1929)
(3GdfU HGddZI GdYQHjIs
Keywords: (3BjGJ GdCMcGes; (3GdTQjYI GdESdGejIs