h.f.ullman, 2010
Buku Referensi
Asensio, Paco, author
Loft Pub., 1999
Buku Referensi
Rowlands, Penelope, author
Chronicle Books, 2000
Buku Referensi
Cerver, Francisco Asensio, author
Konemann, 2000
Buku Teks
Prati, Lacroze Miguens, author
Rockport Pub., 1997
Buku Teks