Bubel, Andreas
Ellis Horwood Limited and Halsted Press, 1989
Buku Teks
Ji, Sungchul
[Springer, ], 2012
eBooks
Dyson, Robert D.
Allyn and Bacon, 1974
Buku Teks
Smith, Chris A.
Chapman & Hall, 1993
Buku Teks
Pollard, Thomas D., author
Saunders Elsevier, 2008
Buku Teks