Spencer, Donald D.
Prentice-Hall, 1977
Buku Teks
edited by Sheldon S.L. Chang
John Wiley & Sons, 1983
Buku Referensi
edited by Sheldon S. L. Chang
John Wiley & Sons, 1983
Buku Referensi
Johannes Fromme
Springer, 2012
eBooks
Bryant, Randal E., author
Prentice-Hall, 2003
Buku Teks