Attiwill, Kenneth
Fortress : the story of the Siege and fall of Singapore
Doubleday, 1960
 Buku Teks SO
Alfred J. Rieber
The struggle for the Eurasian borderlands: from the rise of early modern empires to the end of the First World War
Cambridge University Press, 2014
 eBooks
Flavin, Christopher
Electricity for a developing world : new directions / Christopher Flavin
Worldwatch Institute, 1986
 Buku Teks
Flavin, Christopher
World oil: coping with the dangress of success / Christopher Flavin
Worldwatch Institute, 1985
 Buku Teks
Stevens, Christopher
Food aid and the developing world / Christopher Stevens
St. Martin's Press, 1979
 Buku Teks