Grant, R.M. (2016) Contemporary strategy analysis: text and cases. 9th ed. Chichester, West Sussex: Wiley.
Johnson, G. (2014) Exploring strategy: text & cases. 10th ed. Harlow, Essex: Pearson. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=5138114.
Johnson, G. et al. (2016) Exploring strategy: text and cases. Eleveth edition. Harlow, England: Pearson Education. Available at: https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=5186321.