Grant, Robert M. Contemporary Strategy Analysis: Text and Cases. 9th ed. Chichester, West Sussex: Wiley, 2016. Print.
Johnson, Gerry. Exploring Strategy: Text & Cases. 10th ed. Harlow, Essex: Pearson, 2014. Web. <https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=5138114>.
---. Exploring Strategy: Text and Cases. Eleveth edition. Always learning. Harlow, England: Pearson Education, 2016. Web. <https://ebookcentral.proquest.com/lib/nottingham/detail.action?docID=5186321>.