World geographical encyclopedia 5: Oceania; index
edited by Sybil P. Parker
McGraw-HIll, 1995
 Buku Referensi
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
Israel, Saul
World geography today
Holt, Rinehart and Winston, 1976
 Buku Teks
Kolevzon, Edward R.
Our world and its people
Allyn and Bacon, 1959
 Buku Teks