edited by Lorraine Eden
St. Martin's Press, 1993
Buku Teks
Albrecht, Karl, 1941-, author
Dow Jones-Irwin , 1985
Buku Teks
Spellman, Susan V., author
Oxford University Press, 2016
eBooks
Rivoli, Pietra, author
John Wiley & Sons, 2005
Buku Teks
Vernon-Wortzel, Heidi, author
John Wiley & Sons, 1997
Buku Teks