Kang, S. Deborah, author
Oxford University Press, 2017
eBooks
Mark Lusk
Springer, 2012
eBooks
Supperstone, Michael, author
Longman, 1994
Buku Teks
Warr, George, author
Sweet & Maxwell, 1994
Buku Teks
Boswell, Richard A., author
Carolina Academic Press, 1992
Buku Teks