MOHD NOR, A. K. Semiotic of Billboards. Jurnal Peradaban Melayu, [S. l.], v. 6, p. 18–24, 2010. Disponível em: https://ejournal.upsi.edu.my/index.php/JPM/article/view/3388. Acesso em: 7 may. 2024.