Pushies, Fred, author
American Management Association, 2009
eBooks
Tolstoy, Leo, graf, 1828-1910, author
Penguin Books, 2016
Buku Teks
Kennedy, John F. (John Fitzgerald), 1917-1963, author
Harper & Brothers, 1960
Buku Teks
Khadduri, Majid, 1908-2007, author
Tarawang Press, 2002
Buku Teks
Tolstoy, Leo, graf, 1828-1910, author
Oxford University Press, 1957
Buku Teks