Tocqueville, Alexis De, author
Schocken Books, 1961
Buku Teks
Tocqueville, Alexis de, author
A Mentor Book, 1956
Buku Teks
Lindsay, A.D., author
Oxford University Press, 1948
Buku Teks
Siahaan, Aurodo Edward Halomoan, author
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2006
UI - Tesis (Membership)
Simbolon, Manuel, author
Universitas Indonesia, 2016
UI - Tesis (Membership)