Jackson, Richard H.
World regional geography: issues for today
Wiley, 1986
 Buku Teks SO
Jackson, Richard H.
World regional geography : issues for today
John Wiley & Sons, 1982
 Buku Teks SO
Jackson, Richard H.
World regional geography : issues for today
Wiley Eastern Limited, 1986
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Israel, Saul
World geography today
Holt, Rinehart and Winston, 1976
 Buku Teks SO
Essentials of world regional geography
by Christopher L. Salter ... [et al.]
Saunders College Publishing, 2000
 Buku Teks SO