(3eLehYI GdbhGYO GdbGfhfjI GdJj bQQJgG eMceI GdfbV (B:s (3aj NeSjf YGeG ef Chd EfTGFgG aj SfI (B1931 (3MJj OjSeHQ SfI (B1980s (3GdLRA GdKGfj (B: (3ef MQa GdJGA Gdj MQa GdQGA (B/ s - (3GdUGhj jhSa GdbHGfjs ((3GdbGgQI (B: s (3ecJHI QLGd GdbVGA,s, 1989)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdELQGAGJ CeGe eMceI GdfbVs