Stoker, Gerry, author
Macmillan, 1991
Buku Teks
McNelly, Theodore, author
Houghton Mifflin, 1972
Buku Teks
penyunting, Abdul Rashid Moten
Cengage Learning, 2008
Buku Teks
Chien, Tuan-Sheng, author
Harvard University Press, 1950
Buku Teks
Harari, Maurice, author
Prentice-Hall, 1962
Buku Teks