1. Abbasi, Rizwana (2012) Pakistan and the new nuclear taboo: regional deterrence and international arms control regime (Oxford: Peter Lang)
2. Albright, David and Robert Avagyan (2012) ‘Construction progressing rapidly on the fourth heavy water reactor at the Khushab nuclear site’, Institute for Science and International Security, < http://isis-online.org/isis-reports/detail/construction-progressing-rapidly-on-the-fourth-heavy-water-reactor-at-the-k/> accessed 22 June 2012.
3. Ali, Zafar (2007) ‘Pakistan's nuclear assets and threats of terrorism: how grave is the danger?’, < http://www.stimson.org/books-reports/pakistans-nuclear-assets-and-threats-of-terrorism-how-grave-is-the-danger/> accessed 28 June 2011.
4. Arif, Khalid M (1995) ‘Retaining the nuclear option’ in Tariq Jan (ed) Pakistan's security and the nuclear option (Islamabad: Institute of Policy Studies), 121–129.
5. Basrur, Rajesh M (2006) Minimum deterrence and India's nuclear security (Stanford, California: Stanford University Press)