Futrell, Charles M., author
McGraw-Hill/Irwin, 2002
Buku Teks
Futrell, Charles M., author
McGraw-Hill, 2014
Buku Teks
Wingate, John W., author
South-Western Publishing, 1959
Buku Teks
Nerissa Arviana, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Tesis (Membership)
Crissy, W.J.E.
John Wiley & Sons, 1977
Buku Teks