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
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Kolevzon, Edward R.
Our world and its people
Allyn and Bacon, 1959
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Essentials of world regional geography
by Christopher L. Salter ... [et al.]
Saunders College Publishing, 2000
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James, Preston E.
The wide world: a geography
Macmillan, 1972
 Buku Teks SO