Adrian Goldsworthy, Pax Romana. War, Peace and Conquest in the Roman World. London: Weidenfeld & Nicolson, 2017.
Stephen P. Kershaw, A Brief History of the Roman Empire. London: Robinson, 2013.
David Potter, Emperors of Rome. London: Quercus, 2008.
Greg Woolf, Rome: An Empire's Story. Oxford: Oxford University Press, 2012.
Low Chai Hok, ©Alberith, 2019