Bourbeau, Philippe, author
Cambridge University Press, 2018
eBooks
Rourke, John T., author
McGraw-Hill, 2010
Buku Teks
Kegley, Charles William, Jr., author
St. Martin`s Press, 1997
Buku Teks
Andrew Hurrell, Ngaire Woods, Satria Utama S., Diana Arimbi
Fakultas Ekonomi UI, 2001
Buku Teks
Kalijarvi, Thorsten V., author
Thomas Y. Crowell, 1954
Buku Teks