1. ACC (American Chemistry Council), 2001, Site Security Guidelines for the US Chemical Industry, Washington DC, available at: http://www.accnewsmedia.com/docs/100/89.pdf.
2. ACS (Advanced Chemical Safety Inc.), 2002, San Diego, available at: http://www.chemical-safety.com/documents/pdf/Security%20RAT.pdf.
3. API (American Petroleum Institute), 2003, Security Guidelines for the Petroleum Industry, Washington DC, available at: http://www.apiec.api.org/filelibrary/Security_Guidance2003.pdf.
4. Site security for process industries;Bajpai;Journal of Loss Prevention in the Process Industries,2005
5. Securing oil and gas infrastructure;Bajpai;Journal of Petroleum Science and Engineering,2007