Einzig, Paul, 1897-1973
Macmillan, 1965
Buku Teks SO
Kindleberger, Charles P., 1910-2003
New York, N.Y. , Massachusetts Institute of Technology and John Wiley & Sons
Buku Teks
Theresia
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2009
UI - Skripsi Open
Nurhidayati Dwiningsih
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 1998
UI - Tesis Membership
Goldstein, Morris, 1944-
World Scientific Publishing, 2017
Buku Teks SO