Moore, Clark D., editor
Africa testerday and today
Praeger, 1968
 Buku Teks
Moore, Clark D., editor
Africa testerday and today
Praeger, 1968
 Buku Teks
Nielsen, Waldemar A.
Africa
Atheneum, 1966
 Buku Teks SO
Africa yesterday and today
edited by Clark D. Moore and Ann Dunbar
Bantam Books, 1968
 Buku Teks SO
Murdock, George Peter
Africa
McGraw-Hill, 1959
 Buku Teks