Hartley, John, author
Arnold , 1996
Buku Teks
Middleton, Neil, author
Pluto Press, 1993
Buku Teks
Cambridge University Press, 2010
eBooks
Syafrullah Amri, author
Fakultas Teknik Universitas Indonesia, 1999
UI - Skripsi (Membership)
Neisser, Ulrich, author
W.H. Freeman, 1976
Buku Teks