Teo, Thomas, author
Springer, 2005
Buku Teks
Ratcliffe, Matthew, author
Palgrave Macmillan, 2007
Buku Teks
Freeman, Frank S.
Holt, Rinehart and Winston, 1960
Buku Teks
Hulin, Charles L., author
Dow Jones-Irwin, 1983
Buku Teks
Shelley McKeown; Reeshma Haji; Neil Ferguson, editor
Springer, 2016
Buku Teks