Ladefoged, Peter, author
Blackwell publisher, 2001
Buku Teks
Chatman, Seymour, author
Houghton Miffiln, 1968
Buku Teks
Kennedy, X. J., author
Harper Collins College, 1991
Buku Teks
Sitter, John, author
Cambridge University Press, 2011
eBooks
Falci, Eric, author
Cambridge University Press, 2015
Buku Teks