Dear Ihtisham, here are some papers I found for you on Scopus:
-Drakos, K., & Kutan, A. M. (2003). Regional effects of terrorism on tourism in three Mediterranean countries. Journal of Conflict Resolution, 47(5), 621–641.
-Neumayer, E. & Plümper, T. (2016), Spatial spill-overs from terrorism on tourism: Western victims in Islamic destination countries. Public Choice, 169: 195.
-Enders, W., & Sandler, T. (1991). Causality between transnational terrorism and tourism: The case of Spain. Terrorism, 14(1), 49–58.
-Enders, W., Sandler, T., & Parise, G. F. (1992). An econometric analysis of the impact of terrorism on tourism. Kyklos, 45(4), 531–554.
-Feridun, M. (2011). Impact of terrorism on tourism in Turkey: Empirical evidence from Turkey. Applied Economics, 43(24), 3349–3354.
-Llorca-Vivero, R. (2008). Terrorism and international tourism: New evidence. Defence and Peace Economics, 19(2), 169–188.