Estall, R.C., author
Hutchin University Library, 1973
Buku Teks
Smith, David M., author
John Wiley & Sons, 1981
Buku Teks
Smith, David M., author
John Wiley & Sons, 1971
Buku Teks
Puu, Tonu
Springer-Verlag, 1997
Buku Teks
Kirby, Andrew, author
RoutledgeI, 2016
Buku Teks