Richards, J.M.
Newton Abbot: Davis and Charles, 1974
Buku Teks
Salvadori, Mario, author
Prentice-Hall, 1963
Buku Teks
Rasmussen, Steen Eiler, author
Technology Press of Massachusetts Institute of Technology, 1975
Buku Teks
Leon Van Schaik, editor
Wiley Academy, 2002
Buku Teks
Adam, Hubertus, author
Dumont Monte, 2001
Buku Teks