Swift, Jeremy
The Sahara
Time-Life Internationa, 1975
 Buku Teks
Kagan, Robert A.
Philippe nonet phlip sedenick
 Buku Teks
Stafford, J.
Boston Adventure
New York Harcourt, Brace and Company 1944
 Buku Teks
A Symposium on fertility in sub-sahara Africa
Washington, D.C :Worl bank, 1996.,
 Buku Teks
Wilson, John Dover, 1881-1959
The Essential Shakespeare: a biographical adventure
Brooklyn, N.Y. :Haskell House Publisher, 1977,
 Buku Teks