GRAY, Noah. Mastering Google AdWords: step-by-step instructions for advertising your business (including Google analytics). Middletown: CreateSpace Independent Publishing Platform, 2019.
ISBN 978-1-71898-832-3.
HANLON, Annmarie. Digital marketing: strategic planning & integration. 2nd ed. Los Angeles: SAGE, 2022.
ISBN 978-1-5297-4281-7.
CHAFFEY, Dave and P. R. SMITH. E-marketing Excellence: Planning and Optimizing Your Digital Marketing. 5th ed. London: Routledge, 2017.
ISBN 9781138191709 .