Burger, Edward, author
Springer Nature, 2019
eBooks
Frans von der Dunk, Fabio Tronchetti, editor
Edward Elgar Publishing, 2015
Buku Teks
Pergamon Press, 1980
Buku Teks
Burrows, William E., author
Random House, 1998
Buku Teks
Pergamon Press , 1976
Buku Teks