(3GdeMceI GdOSJhQjI GdYdjG(B.s (3jfGjQ (B1987 - (3jhfjI (B1991: (3GdLRA GdQGHY (B/s ((3GdbGgQI (B:s (3LeghQjI eUQ GdYQHjI(B-(3GdecJH Gdafj ddeMceI GdOSJhQjI,s, 1987)
(3GdCMcGe GdJj CUOQJgG GdeMceI ef Chd jfGjQ(B1987 (3MJi BNQ jhfjI (B1991.s
Keywords: (3GdbGfhf GdOSJhQjs -- (3OhQjGJs