Brandi, Karl
Jonathan Cape, 1949
Buku Teks
Götze, Heinz, author
Prestel, 1998
Buku Teks SO
Götze, Heinz, author
Prestel, 1998
Buku Teks SO
Sakamoto, Taro
The International Society for Educational Information, 1984.
Buku Teks
Symons, Julian, author
Arthur Barker, 1951
Buku Teks