1 
Hamilton L, Webster P. The international business environment. Third edition. Oxford: Oxford University Press 2015.
   
  
    2 
Morrison J, Morrison J. The global business environment: meeting the challenges. 3rd ed. Basingstoke: Palgrave Macmillan 2011.
   
  
    3 
Wetherly P, Otter D. The business environment: themes and issues in a globalizing world. Third edition. Oxford: Oxford University Press 2014.
   
  
    4 
Harrison AL. Business environment in a global context. Second edition. Oxford: Oxford University Press 2014.
   
  
    5 
Lipsey RG, Chrystal KA. Economics. Thirteenth edition. Oxford: Oxford University Press 2015.