(3EJaGbjI GdCee GdeJMOI ddfbd GdHMQj ddHVGFY YGe (B1978((3bhGYO gGeHhQL(B) :s (3GdfGaPI aj LeghQjI eUQ GdYQHjI EYJHGQkG ef Chd fhaeHQ (B1997 (3fWGb JWHjb GdEJaGbjI hJaSjQgG (B- (3eSFhdjI GdfGbd eSFhdjI GdTGMf (B- (3hKGFb Gdfbd (B- (3GdeWGdHGJ hGdOYGhj (B/s - (3ceGd MeOjs ((3GdCScfOQjI (B:s (3efTCI GdeYGQa,s, 1998)
(3jTJed Ydi EQLGYGJ HHjdhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdbGfhf GdOhdj GdYGes -- (3Gdfbd GdeGFj (B-- (3bGfhf Ohdj (B/ (3Gdfbd GdHMQj (B-- (3bGfhf Ohdj (B/ (3GdbGfhf GdOhdj GdHMQjs