Engelhardt, Gunter
John Wiley & Sons, 1987
Buku Teks
Jerry C. C. Chan, editor
Springer, 2012
eBooks
Brevard, C., author
John Wiley & Sons, 1981
Buku Referensi
Fyfe, Colin A.
C.F.C. Press, 1983
Buku Teks
Sandstrom, J., author
Academic Press, 1982
Buku Teks