Borgatti, Stephen P, author
Sage, 2013
Buku Teks
Hansen, Derek L., author
Morgan Kaufmann, 2011
Buku Teks
Cuthbertson, Keith
The University of Michigan, 1992
Buku Teks
Gloor, Peter A., author
Emerald, 2017
eBooks
Robbins, P Stephen, author
Indeks, 2004
Buku Teks