Proenca, Maria Candida
Os descobrimentos no imaginario Jevenil (1850-1950) / Maria Candida Proenca
Comissao Nasional, 2000
 Buku Teks
Dictionario de lingua Portuguesea fundamental
edited by Manuel Augusto
Universal, 1998
 Buku Teks
Almeida, Germano
Dona pura e os camaradas de abril
Caminho, 1999
 Buku Teks
Franca, Jose-Augusto
A Arte Portuguese de Oitocentos / Jose-Augusto Franca
Instituto de Cultura e Lingua Portuguesa, , 1992
 Buku Teks
Ingpen, Robert
Encyclopedia of ideas that changed the world : the greatest discoveries and inventions of human history
Dragon's World, 1993
 Buku Referensi