Buchman, Joseph, author
Englewood Cliffs, NJ, Prentice-Hall
Buku Teks
Brown, Robert Goodell, author
New York, N.Y., Holt, Rinehart and Winston
Buku Teks
Irvan Wahyu Hutomo, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2016
UI - Tesis (Membership)
Sonia Shabani, author
Taylor and Francis, 2016
Artikel Jurnal
Vollmann, Thomas E., author
Business One Irwin, 1993
Buku Referensi