Blalock, Garrick; Kadiyali, Vrinda; Simon, Daniel H. (2007). "The Impact of Post-9/11 Airport Security Measures on the Demand for Air Travel". The Journal of Law & Economics. 50 (4): 731–755. doi:10.1086/519816. ISSN0022-2186. JSTOR10.1086/519816. S2CID681649.
Blalock, Garrick; Kadiyali, Vrinda; Simon, Daniel H. (2007). "The Impact of Post-9/11 Airport Security Measures on the Demand for Air Travel". The Journal of Law & Economics. 50 (4): 731–755. doi:10.1086/519816. ISSN0022-2186. JSTOR10.1086/519816. S2CID681649.
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"Religions". www.mdpi.com. Retrieved September 2, 2021.
Blalock, Garrick; Kadiyali, Vrinda; Simon, Daniel H. (2007). "The Impact of Post-9/11 Airport Security Measures on the Demand for Air Travel". The Journal of Law & Economics. 50 (4): 731–755. doi:10.1086/519816. ISSN0022-2186. JSTOR10.1086/519816. S2CID681649.
Blalock, Garrick; Kadiyali, Vrinda; Simon, Daniel H. (2007). "The Impact of Post-9/11 Airport Security Measures on the Demand for Air Travel". The Journal of Law & Economics. 50 (4): 731–755. doi:10.1086/519816. ISSN0022-2186. JSTOR10.1086/519816. S2CID681649.