Franca, Jose-Augusto, author
Livros Horizonte, , 2000
Buku Referensi
Ministrio dos Negocios
Instituto Camoes,
Buku Teks
Mattoso, Jose, author
Editorial Caminho, 2003
Buku Teks
Editorial Caminho, , 1999
Buku Teks
Serrao, Joel, author
Estampa, 2006
Buku Teks