(3GdfXGe GdbGfhfi ddGJaGbjGJ GdHJQhdjI ai Ohd eLdS GdJYGhf GdNdjLj(B.s (3OQGSI ebGQfI eY GdGgJeGe HGdGJaGbjGJ hfXe GdHJQhd HGdeedcI GdYQHjI GdSYhOjI (B/s - (3GMeO YHOGdMejO YThTs; (3YeQ GHhHcQ HGNTHs ((3GdGScfOQjI (B:s (3eDSSI THGH GdLGeYI (B,s, 1990)
(3jTed Ydi GQLGYGJ HHdjhLQGajIs
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdefJLGJ (B-(3GdHJQhd(B-(3Ohd GdNdjLs