Dennis Dieks, editors
Springer, 2012
eBooks
Kovacs, Ferenc
B.R. Gruner, 1971
Buku Teks
Seal, Hilary L., author
John Wiley & Sons, 1978
Buku Teks
Schodek, Daniel L., author
Prentice-Hall, 1980
Buku Teks
Schodek, Daniel L., author
Prentice-Hall, 1998
Buku Teks