Hill, W.F., author
Landscape handbook for the tropics
Garden Art Press , 1995
 Buku Referensi
Williamson, David, author
Travelling North / David Williamson
Currency Press, 1980
 Buku Teks
Barrow, Christopher J., author
Water resources and agricultural development in the tropics
Essex Longman Scientific & Technical, 1987
 Buku Teks
Wilcocks, Charles
Health and disease in the tropics/Charles Wilcocks
Oxford University Press, 1950
 Buku Teks
Tendler, Judith.
Good government in the tropics / Judith Tendler.
The Johns Hopkins University Press, 1997
 Buku Teks
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