Cahn, Edmond
Vakils, Feffer and Simons, 1961
Buku Teks
Michael Saward, editor
Routledge, 2000
Buku Teks
Becker, Carl L. (Carl Lotus), 1873-1945, author
Yale University Press, 1959
Buku Teks
Yayasan obor Indonesia, 2005
Buku Teks
Dye, Thomas R., author
Thomson, 2006
Buku Teks