(EN) Peter Tomsen, Chapter 4 - Modernizing Monarchs, in The Wars of Afghanistan: Messianic Terrorism, Tribal Conflicts, and the Failures of Great Powers, PublicAffairs, 10 dicembre 2013, ISBN9781610394123.
(EN) M. Nazif Shahrani, State Building and Social Fragmentation in Afghanistan: A Social Perspective, in Ali Banuazizi e Myron Weiner (a cura di), The State, Religion, and Ethnic Politics: Afghanistan, Iran, and Pakistan, Syracuse, New York, Syracuse University Press, 1986, p. 57, ISBN9780815624486. URL consultato il 18 gennaio 2019 (archiviato dall'url originale il 19 gennaio 2019).