edited by Richard Andrews
Routledge, 2004
Buku Teks
Athanassios Jimoyiannis, editor
Springer, 2012
eBooks
Hubbard, L. Ron, 1911-1986, author
Bridge Publications, Inc., 2012
Buku Referensi
Michael Edison Nata, author
Fakultas Ilmu Komputer Universitas Indonesia, 2007
UI - Tesis (Membership)
Artikel Jurnal