Sabine, George H.
Harcourt Brace College Publishers, 1973
Buku Teks
Andre M N Renzaho
Imperial College Press, 2016
Buku Teks
Unger, Roberto Mangabeira
The Free Press, 1975
Buku Teks
Schroder, Peter
Frriedrich Naumann Stiftung, 2004
Buku Teks
Lukas Luwarso
Banana, 2021
Buku Teks