Hutton, Christopher, author
Routledge, 1998
Buku Teks
Duyns, Don, author
Moon, 2010
Buku Teks
edited by Heather Radi, Peter Spearritt
Hale & Iremonger, 1977
Buku Teks
Jeong, Hong Cheol, author
Dasanbooks, 2008
Buku Teks
Lange, Serge
Addison-Wesely, 1968
Buku Teks