Sweezy, Paul M. (Paul Marlor), 1910-2004, author
McGraw-Hill, 1949
Buku Teks
Wetter, Gustav Andreas, 1911-, author
Frederick A. Praeger, 1962
Buku Teks
Wilson, Edmund, 1895-1972, author
Doubleday & Co., 1972
Buku Teks
Franz Magnis-Suseno, author
Gramedia Pustaka Utama, 2005
Buku Teks
Ebenstein, William, author
Prentice-Hall, 1954
Buku Teks