(3GdfXGe GdGbJUGOj GdGSdGej (B:s ((3NUGFUI (B- (3GgOGaI (B- (3GKGQ JWHjbI(B) / s - (3jhSa GHQGgje jhSas ((3GdbGgQI (B:s (3ecJH GdQSGdI GdOhdjI dddWHGYI GdceHjhJQ,s, 2000)
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdI GdYGeI hGdJTQjY GdVQjHjs