Cpeus, 1992
Buku Teks
Disney, A.R, author
Cambridge University Press, 2009
Buku Teks
Pereira, Jose Fernandes, author
Instituto de Cultura e Lingua Portuguesa, 1992
Buku Teks
Russell-Wood, A.J.R., author
Assirio & Alvin, 1998
Buku Teks
Livermore, H.V., author
Cambridge University Press, 1969
Buku Teks