Ewald, Helen Rothschild, author
Prentice-Hall International, 1997
Buku Teks
Jackson, Peter C., author
Pitman, 1987
Buku Teks
Locker, Kitty O., author
McGraw-Hill, 2013
Buku Teks
edited by Peggy Simcic Brønn, Stefania Romenti, Ansgar Zerfass
Emerald, 2016
eBooks
Argenti, Paul A., author
McGraw-Hill, 2003
Buku Teks