World geographical encyclopedia 5: Oceania; index
edited by Sybil P. Parker
McGraw-HIll, 1995
 Buku Referensi
Most of the world : the peoples of Africa, Latin America, and the East today / Edited by Ralph Linton
Columbia University Press, 1949
 Buku Teks SO
Browne, G.S.
Europe Africa world population
F.W. Chesire, 1960
 Buku Teks
James, Preston E.
One world divided : a geographer looks at the modern world
John Wiley & Sons, 1980
 Buku Teks SO
Essentials of world regional geography
by Christopher L. Salter ... [et al.]
Saunders College Publishing, 2000
 Buku Teks SO