Murphey, Murray G., author
Springer, 2012
eBooks
Becker, Edward F., author
Cambridge University Press, 2012
Buku Teks
Arif Maulana, author
2017
UI - Skripsi Membership
Haris Sriwindono, author
Universitas Indonesia, 1994
UI - Tesis Membership
Maddux, John L.
World Bank, 1981
Buku Teks