Li, Xiaodong
Civilization
China Renmin University Press, 2015
 eBooks
Grant, Michael
The Collapse and Recovery of the Roman Empire
Routledge, 1999
 Buku Teks
Chang, Gordon G.
The coming collapse of China
Century, 2001
 Buku Teks
Diamond, Jared
Collapse : runtuhnya peradaban-peradaban dunia
KPG (Kepustakaan Populer Gramedia), 2017
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Huntington, Ellsworth
Mainsprings of civilization
John Wiley & Sons, 1945
 Buku Teks