edited by Hans Gunter
Macmillan, 1973
Buku Teks
Michelagnoli, Giovanni, author
[Springer, Springer], 2012
eBooks
Urs Lutherbacher, author
Wiley-Blackwell, 2017
Artikel Jurnal
Yoder, Dale, author
Prentice-Hall, 1962
Buku Teks
Johnson, Rossall James, 1917-, author
[publisher not identified], [date of publication not identified]
Buku Teks