Vassallo, Philip, author
[American Management Association;, ], 2010
eBooks
Merriam, Charles E. (Charles Edward), author
New York University Press, 1936
Buku Teks
Solomos, John, author
Routledge, 1995
Buku Teks
Gilpin, Robert, author
Cambridge University Press, 1981
Buku Teks
Aitkin, Don, author
Australian National University Press, 1978
Buku Teks