edited by Peter G. Stone, Robert MacKenzie
Routledge, 1994
Buku Teks
Plumb, J.H. (John Harold), 1911-
Macmillan, 1969
Buku Teks
Breman, Jan, author
Oxford University Press, 2016
eBooks
Rohe, Mathias, author
Brill, 2015
eBooks
Sharer, Robert J., author
McGraw-Hill, 2003
Buku Teks