Yi Cai, author
Springer, 2012
eBooks
O`Brien, Dan, author
Polity Press, 2006
Buku Teks
Morton, Adam, author
Blackwell, 1997
Buku Teks
Sproat, Richard, author
Cambridge University Press, 2006
Buku Teks
Brachman, Ronald J., author
Elsevier, 2004
Buku Teks