BILLANOVICH, Giuseppe. Petrarca e Cicerone. Ciceroniana On Line, [S. l.], v. 1, n. 1, p. 31–32, 2015. DOI: 10.13135/2532-5353/1052. Disponível em: https://ojsunito33.archicoop.it/index.php/COL/article/view/1052. Acesso em: 8 feb. 2025.