Bank, Melissa, author
Gagas Media, 2007
Buku Teks
Aafjes, Bertus, author
J.M. Meulenhoff, 1964
Buku Teks
Nelson, Walter H.
Little, Brown, 1965
Buku Teks
Oakes, Colleen, author
Metamind, 2016
Buku Teks
Marmysz, John, 1964-, author
Wadsworth and Cengage Learning, 2012
Buku Teks