Doody, Francis S.
New York, N.Y. Random c.1965,
Buku Teks
Fabella, Armand V.
University of the Philippines, 1968
Buku Teks
Mackinnon, Danny, author
Routledge, 2019
Buku Teks
Faure, Michael, author
Edward Elgar, 2003
Buku Teks
Knox, Paul, author
Edward Arnold , 1994
Buku Teks