1.
Casella G, Berger RL. Statistical inference. 2nd ed. Pacific Grove, CA: Thomson Learning; 2002.
2.
Newman MEJ. Networks: an introduction. Oxford: Oxford University Press; 2010.
3.
Mayer-Schönberger V, Cukier K. Big data: a revolution that will transform how we live, work, and think. Boston: Houghton Mifflin Harcourt; 2013.