Encarna Castillo, editor
Harper Design International, 2003
Buku Referensi
Whately, Alice
Pageone, 2002
Buku Referensi
Cuito, Aurora
Loft Publications S.L and HBI, 2002
Buku Teks
Beazley, Mitchell
Reed Consumer Books, 1990
Buku Referensi
Leibrock, Cynthia A.
John Wiley & Sons, 2000
Buku Referensi