prepared by the Cartographic Department of the Clarendon Press
Oxford University Press, 1972
Buku Referensi
Thomson, J Oliver
JM Dent & Sons , 1961
Buku Teks
C.S. Hammond & Company
C.S. Hammond & Company, 1958
Buku Teks
Presser, J. (Jacob)
Uitgave van, 1939
Buku Referensi
Cribb, Robert Bridson
NIAS Press, 2010
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