1. ‘GTD ID: 198705130011,’ Global Terrorism Database, 13 May 1987. https://www.start.umd.edu/gtd/search/IncidentSummary.aspx?gtdid = 198705130011. Accessed: 1 November 2022.
2. ‘GTD ID: 199007200001,’ Global Terrorism Database, 20 July 1990.
3. https://www.start.umd.edu/gtd/search/IncidentSummary.aspx?gtdid = 199007200001. Accessed: 1 November 2022.
4. ‘GTD ID: 199208080001,’ Global Terrorism Database, 8 August 1992. https://www.start.umd.edu/gtd/search/IncidentSummary.aspx?gtdid = 199208080001. Accessed: 1 November 2022.
5. ‘GTD ID: 200807160012,’ Global Terrorism Database, 16 July 2008.