(3bGfhf GdYbhHGJ GdYScQi (B:s (3GdUGOQ HJGQjN (B27 (3THGW (B1950 /s - (3hRGQI GdYOdjI GdLeghQjI GdShQjIs ((3dG jhLO ecGf fTQ eMOO (B:s (3dG jhLO fGTQ eMOO,s, 1950)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdLfGFjs; (3bGfhf GdYbhHGJ GdYScQjs -- (3bhGfjf hJTQjYGJs