Ingram, Robert W., author
American Accounting Assiciation , 1980
Buku Teks
Murphy, Tom, author
American Management Association, 2007
eBooks
Shetterly, Margot Lee, author
An imprint of HarperCollins , 2016
Buku Teks
Waldholz, Michael
Simon & Schuster , 1997
Buku Teks
Randy Rudiananda, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2013
UI - Skripsi (Membership)