Perna, Cira, editor
[Springer, ], 2012
eBooks
Boland, Philip J., author
Chapman & Hall/CRC , 2007
Buku Teks
Bartholomew, David J., author
John Wiley & Sons, 1981
Buku Teks
Potter, Merle C., author
Prentice-Hall, 1978
Buku Teks
Boas, Mary L., author
John Wiley & Sons, 1983
Buku Teks