Daab,
Buku Referensi
edited by Cristina Paredes Benitez
Daab, 2006
Buku Referensi
Salvadori, Mario
Prentice-Hall, 1963
Buku Teks
Richards, J.M.
Newton Abbot: Davis and Charles, 1974
Buku Teks
Rasmussen, Steen Eiler
Technology Press of Massachusetts Institute of Technology, 1975
Buku Teks