Easton, David
Knopf, 1971
Buku Teks
John Wiley & Sons, 1965
Buku Teks
Mackerras, Colin, editor
Cambridge University Press, 1991
Buku Referensi
Institute of International Relations, National Chengchi University, 1988
Buku Teks
Nanda Akbar
Jogja Mediautama, 2011
Buku Teks