Raykov, Tenko, author
Routledge, Taylor & Francis Group, 2008
Buku Teks
Dielman, Terry E.
Brooks/Cole, 2004
Multimedia
Neter, John, author
Irwin, 1990
Buku Teks
Neter, John, author
Richard D. Irwin, INC, 1974
Buku Teks
Heumann, Christian, author
Springer International Publishing, 2016
eBooks