Marcel Das, Peter Ester, Lars Kaczmirek, editor
Routledge, 2011
Buku Teks
Lior Gideon
Springer Science, 2012
eBooks
Judd, Charles M., author
Methuen, 1991
Buku Teks
Lee, Raymond M., author
Open University Press, 2000
Buku Teks
Gravetter, Frederick J., author
CT Cengage Learning, 2016
Buku Teks