Angel, Edward, author
Addison-Wesley, 1997
Buku Teks
Nolan, Godfrey, author
Springer, 2012
eBooks
Tolstoy, Leo, graf, 1828-1910, author
Quirk Books, 2010
Buku Teks
Angel, Edward, author
Pearson, 2009
Buku Teks
Angel, Edward, author
Pearson, 2006
Buku Teks