Jaspers, Joep, author
Academic Service, 2005
Buku Teks
Eisenberg, Anne, author
McGraw-Hill, 1992
Buku Teks
Roze, Maris, author
Prentice-Hall, 2002
Buku Teks
Sides, Charles H., 1952-, author
Cambridge University Press, 1992
Buku Teks
Zobel, Justin, author
Springer, 2014
Buku Teks