(3GdEKHGJ ai GdehGO GdLfGFjI (B:s (3eMGhdI abgjI hYedjI dEQSGA fXQjI YGeI(B/s - (3eMeO Rci CHh YGeQs ((3GdEScfOQjI (B:s (3GdafjI ddWHGYI hGdfTQ (B,s, 1984)
(3GdfU HGddZI GdYQHjIs
Keywords: (3bGfhf LfGFjs; (3GdEKHGJ GdLfGFjs