1. Annual Report Tesco 2017;
2. Annual Report Carrefour 2017;
3. Annual Report Ahold Delhaize 2017;
4. Berman.B. and Evans. J. R. and Patroli, M. C. (2018). Retail Management Boston: Prentice Hall;
5. Calva, A. (2017). Case of financial ratio analysis: Food retail industry in Canada (2012 - 2016).Acus Consulting Ltd., 1-13, Retrieved from www.AcusConsulting.com (July 31, 2018);