Callahan, Michael T.
McGraw-Hill, 1992.
Buku Teks
Hutchings, Jonathan F.
McGraw-Hill, 1996
Buku Referensi
Newitt, Jay S.
Pearson-Prentice Hall, 2005
Buku Teks
Mubarak, Saleh
Pearson-Prentice Hall, 2005
Buku Teks
Abidzar Basaib
Fakultas Eknonomi dan Bisnis Universitas Indonesia, 2019
UI - Tesis Membership