Quinn, Gerard, author
Studio Editions, 1990
Buku Referensi
Slade, Catharine
Pageone, 2002
Buku Referensi
Slade, Catharine
Quarto publishing, 2002
Buku Referensi
Fataya Azzahra, author
Feliz Books, 2016
Buku Teks
Ronald Creighton-Jobe, consultant
Hermes House, 2017
Buku Referensi