LIU, V. Seal Culture Still Remains in Electronic Commerce: History of Seal and Printing Cultures. M/C Journal, [S. l.], v. 8, n. 2, 2005. DOI: 10.5204/mcj.2335. Disponível em: https://journal.media-culture.org.au/index.php/mcjournal/article/view/2335. Acesso em: 1 dec. 2023.