Sobel, Michael I.
University of Chicago, 1987
Buku Teks
Mueller, Conrad G.
Time Incoporated, 1966
Buku Teks
Supriyanto
Universitas Indonesia, 1992
UI - Tesis (Membership)
edited by R.I. Freshney
IRL Press, 1992
Buku Teks
Entwistle, Jill
New York Roto vision SA 1999,
Buku Referensi