Safitri, Ferdianita Lucky Nur. “A STUDY ON POLITENESS STRATEGIES OF CHARACTERS IN THE BIG WEDDING MOVIE DIRECTED BY JUSTIN ZACKHAM”. JURNAL ILMIAH BAHASA DAN SASTRA, vol. 2, no. 2, Dec. 2015, pp. 93-107, http://ejournal.unikama.ac.id/index.php/JIBS/article/view/1146.