1. Ahmed, S., Jaidka, K., & Skoric, M. M. (2016, March). Tweets and votes: A four-country comparison of volumetric and sentiment analysis approaches. In Tenth International AAAI Conference on Web and Social Media.
2. Becker, B. & Wehner, J. (1998). Electronic media and civil society. In C. Ess & F. Sudweeks (eds), Proceedings of Cultural Attitudes Towards Technology and Communication Conference. Australia: University of Sydney. Available at http://www.it.murdoch.edu.au/~sudweeks/catac98/pdf/04_becker.pdf
3. Berelson, B. (1954). Content analysis. Handbook of social psychology, 1, 488-522.
4. Can social network sites enable political action?
5. Brodock, K., Joyce, M., & Zaeck, T. (2009). Digital Activism Survey Report 2009. Retrieved from http://www.digi active.org/wp-content/uploads/Research4_SurveyReport2009.pdf