Gaensslen, R.E., author
McGraw-Hill, 2008
Buku Teks
edited by William G. Eckert
Mosby, 1980
Buku Teks
Gennard, Dorothy, author
Wiley-Blackwell, 2012
Buku Teks
Saferstein, Richard, author
Prentice-Hall, 1995
Buku Teks
Coulthard, Malcolm, author
Routledge, 2017
Buku Teks