[1] ROTHAERMEL, Frank T. Strategic management. Fourth edition. New York: McGraw-Hill Education, [2019]. ISBN 978-1-260-09237-0.
[2] HEIZER, Jay H., RENDER, Barry, MUNSON, Chuck. Principles of operations management: sustainability and supply chain management.Tenth edition. Boston: Pearson, 2016. ISBN 978-1-292-15301-8.