Krutch, Joseph Wood, author
Random House, 1959
Buku Teks
Singapore UniVersity Press for ISEAS, 1975
Buku Teks
Sugrue, Thomas J., 1962-, author
Princeton University Press, 2014
Buku Teks
edited by Immanuel Lim
Discern Pub. House, 2010
Buku Teks
Anwar Ibrahim, author
Mizan, 1998
Buku Teks