Tài liệu tham khảo WikiPedia: Trò_chơi_gọi_hồn http://www.boxofficemojo.com/movies/?id=ouija.htm http://www.latimes.com/entertainment/envelope/coto... http://variety.com/2012/film/news/u-recruits-pair-... http://www.bbfc.co.uk/releases/ouija-film
