1. Aswani, R., Kar, A., Ilavarasan, V., & Dwivedi, Y. (2018). Search engine marketing is not all gold: Insights from Twitter and SEOClerks. International Journal of Information Management, 38, 107–116.
2. Balcı, C., & Kızılbağ, M. (2019). Çok kanallı değeri benimsemek: Teknosa dijital yatırımların fiziksel mağazaya olan etkisini kanıtladı. Retrieved from: https://www.thinkwithgoogle.com/intl/tr-tr/icgoruler/basari-hikayeleri/cok-kanalli-degeri-benimsemek-teknosa-dijital-yatirimlarin-fiziksel-magazaya-olan-etkisini-kanitladi/ (accessed: the 22nd November, 2019).
3. Baltes, L. (2015). Content marketing – The fundamental tool of digital marketing. Bulletin of the Transilvania University of Braşov, 8(57), 111–118.
4. Bellanger, C. (2017). How influencer marketing can take your travel business to new heights. Retrieved from: https://www.upfluence.com/influencer-marketing/influencer-marketing-travel-business (accessed: the 22nd November, 2019).
5. Bishop, T., & Rowley, J. (2012). Digital marketing in independent libraries in the United Kingdom. Journal of Librarianship and Information Science, 45(4), 323–334.