Goodman, Richard E., author
Prentice-Hall, 1985
Buku Teks
Goodman, Richard E., author
John Wiley & Sons, 1980
Buku Teks
Pusch, R., author
Elsevier, 1995
Buku Teks
Kok-Kwang, Phoon, author
Taylor &Fransic, 2008
Buku Teks
edited by P.J.N. Pells
A.A. Balkema, 1980
Buku Teks