[1]
Casella, G. and Berger, R.L. 2002. Statistical inference. Thomson Learning.
[2]
Mayer-Schönberger, V. and Cukier, K. 2013. Big data: a revolution that will transform how we live, work, and think. Houghton Mifflin Harcourt.
[3]
Newman, M.E.J. 2010. Networks: an introduction. Oxford University Press.