Hartshorn, Truman Asa, author
John Wiley & Sons, 1980
Buku Teks
Jonas, Andrew E. G, author
Wiley-Blackwell, 2015
Buku Teks
Hall, Tim, 1968-, author
Routledge, 2018
Buku Teks
Kaplan, David, author
John Wiley & Sons, 2009
Buku Teks
edited by Julie Cidell and David Prytherch
Routledge, 2015
Buku Teks