1. Ainsztein, R. (1974). Jewish resistance in Nazi-occupied Eastern Europe: With a historical survey of the Jew as fighter and soldier in the diaspora. Elek.
2. Arendt, H. (1994). Eichmann in Jerusalem: A report on the banality of evil. Penguin. (Original work published 1963).
3. Bar-Zohar, M. (1998). Beyond Hitler’s grasp: The heroic rescue of Bulgaria’s Jews. Adams Media.
4. Boboshevski, T., & Velchev, D. (1943). Letter from public figures to King Boris (A. Denner, Trans.). In T. Todorov, The fragility of goodness: Why Bulgaria’s Jews survived the Holocaust (pp. 106–107). Princeton University Press.
5. The Bulgarian Jews and the Final Solution, 1940-1944