Cornish, G. P., author
Cambridge University Press, 2015
eBooks
Cornish, Graham P., author
Facet Publishing , 2004
Buku Referensi
edited by David Baker and Wendy Evans
Emerald, 2017
eBooks
Saez, Eileen Elliott de, author
Facet, 2002
Buku Teks
Saez, Eileen Elliott de, author
Facet Pub, 2002
Buku Teks