Ethnic Cleansing in the Balkans: Nationalism and the Destruction of Tradition, Cathie Carmichael, Routledge, 2003, ISBN1134479530, p. 138.
Contested Ethnic Identity: The Case of Macedonian Immigrants in Toronto, 1900–1996, Chris Kostov, Peter Lang, 2010, ISBN3034301960, p. 77.
The assassination was attributed to the Croatian Ustashi organization, mortal enemies of Serbian domination, but it was established that the actual assassin was Bulgarian, the IMRO member Tchernozemski, alias "Vlado the Chauffeur. Crown of Thorns: The Reign of King Boris III of Bulgaria, 1918–1943, Stephane Groueff, Madison Books, 1998, ISBN1461730538, p. 224.
Igor Despot (2019) "The Balkan Wars: An Expected Opportunity for Ethnic Cleansing", Journal of Muslim Minority Affairs, 39:3, 343–355, doi:10.1080/13602004.2019.1652410.
Morawski, Konrad Sebastian (2016). «The assassination of King Alexander I of Yugoslavia in the light of archival press articles». Studia z Dziejów Rosji i Europy Środkowo-Wschodniej (em inglês). 51 (1): 47–76. doi:10.12775/SDR.2016.EN1.03