Brooks, Ann, author
Routledge, 2017
Buku Teks
Campbell, B. M. S., author.
Cambridge University Press , 2016
Buku Teks
Lambrou, Peter, author
Rider, 2000
Buku Teks
edited by Eva. R. Hoffman
Blackwell, 2007
Buku Teks
Ashton, Gail
Routledge, 2000
Buku Teks