JAUN, Marlon A. Lean Six Sigma Techniques. Books on Demand, 2021. 194 p. ISBN 3754308122 .
MUNRO,R.,A.RAMU and D.ZRYMIAK. The ASQ Certified Six Sigma Green Belt Handbook. 3rd ed. Milwaukee: ASQ, Quality Press, 2022. 591 p. ISBN 978-1-952236-17-4 .
SETH, Godin. Tohle je marketing! Praha: Grada, 2019. 208 s. ISBN 978-80-271-2567-8.