Reis, Antonio Do Carmo, author
Casa Das Letral, 2005
Buku Teks
Porto Editora, 2006
Buku Referensi
Bergstrom, Magnus, author
Editorial Notícias, 1984
Buku Teks
Bergstrom, Magnus, author
Editorial Notícias, [1984?]
Buku Teks
Porto Editoria, [2013]
Buku Teks