1. Amnesty International (2004). Singapore: the death penalty—a hidden toll of executions. Available online at < http://www.amnesty.org/en/library/asset/ASA36/001/2004/en/74c4cb33-d64e-11dd-ab95-a13b602c0642/asa360012004en.pdf >.
2. Amnesty International (2015a). Death sentences and executions 2014. London: Amnesty International Ltd.
3. Amnesty International (2015b). Death penalty 2015: the good and the bad. Available online at < https://www.amnesty.org/en/latest/campaigns/2015/07/death-penalty-2015-the-good-and-the-bad/ >.
4. Amnesty International (2015c). India: execution of Yakub Memon cruel and inhuman. Available online at < https://www.amnesty.org/en/latest/news/2015/07/india-execution-of-yakub-memon-cruel-and-inhuman/ >.
5. Associated Press (2005). A list of death row inmates in Singapore who were granted clemency. The Straits Times (2 December).