Adrian, Charles R., author
McGraw-Hill, 1955
Buku Teks
Parkin, Andrew
Macmillan, 1982
Buku Teks
Amantya Koesrimardiyati, author
Universitas Indonesia, 2011
UI - Tesis (Open)
1950
Buku Teks
Dillon Zufri, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2013
UI - Skripsi (Membership)