Soegih Arto
Times Books International, 1994
Buku Teks
Universitas Riau,
Majalah, Jurnal, Buletin
edited by Morris Fishbein
H.S. Stuttman CO., Inc., 1964
Buku Referensi
Franca, Jose-Augusto, author
Livros Horizonte, , 2000
Buku Referensi
Franca, Jose-Augusto
Instituto de Cultura e Lingua Portuguesa, , 1992
Buku Teks