Szasz, F.A., author
John Wiley & Sons, 1981
Buku Teks
Rolt, L.T.C
Alan Sutton, 1994
Buku Teks
Doescher, Ian, author
Quirk Books, 2015
Buku Teks
edited by Robert E. Beck
Academic Press, 1977
Buku Teks
Passman, Donald S., author
John Wiley & Sons, 1979
Buku Teks