Fries, Charles Carpenter, author
University of Michigan Press, 1951
Buku Teks
Sullivan, Peter, 1948-, author
Springer, 2013
Buku Teks
edited by Douglas McConatha, Christian Penny, Jordan Schugar, and David Bolton
Igi Global, 2014
Buku Teks
Nagel, Michael C., author
Oxford University Press, 2016
Buku Teks
edited by Douglas A. Grouws
Macmillan Library Reference, 1992
Buku Referensi