Giordan, Giuseppe, editor
Springer, 2011
eBooks
Savi, Julio, author
Royal Falcon Books, 2012
Buku Teks
Cox, Harvey G., author
I.B. Tauris , 2009
Buku Teks
Schraf, Betty R
Tiara Wacana Yogya, 1995
Buku Teks
Weber, Max, 1864-1920, author
Beacon Press , 1963
Buku Teks