Pereira, Jose Fernandes, author
Instituto de Cultura e Lingua Portuguesa, 1992
Buku Teks
Serrao, Vitor, author
Instituto de Cultura e Lingua Portuguesa, 1991
Buku Teks
Alexandre, Melo
Lisboa : Betrand Editora, 2007
Buku Teks
Melo, Alexandre, author
Bertrand , 2007
Buku Referensi
Goncalves, Rui Mario, author
Instituto de Cultura e Lingua Portuguesa, 1991
Buku Teks