1. Amnesty International. (2018). Death sentences and Executions 2017.
2. Amnesty International. (2019). Death sentences and executions 2018.
3. Asian Centre for Human Rights. (2011). Torture in India 2011. New Delhi.
4. Batra, B. (2008). Lethal lottery: the death penalty in India: a study of supreme court judgments in death penalty cases 1950-2006, Amnesty International.
5. Baumgartner, F. R., DeBoef, S. L., & Boydstun, A. E. (2008). The decline of the death penalty and the discovery of innocence. Cambridge: Cambridge University Press.