Byars, Mel, author
Laurence King Publishing, 1994
Buku Referensi
Mcketta, John J.
Marcell Dekker, 1990
Buku Referensi
Sage Publications, 2010
eBooks
Julier, Guy, author
Thames and Hudson, 1993
Buku Referensi
Riley, Noel, editor
Free Press, 2003
Buku Referensi