Wilcox, W. Wayne
John Wiley & Sons, 1991
Buku Referensi
Gutdeutsch, Goitz
Birkhal'user, 1997
Buku Teks
edited by Keith F. Faherty, Thomas G. Williamson
McGraw-Hill, 1995
Buku Referensi
edited by Keith F. Faherty, Thomas G. Williamson
McGraw-Hill, 1997
Buku Referensi
edited by Keith F. Faherty and Thomas G. Williamson
McGraw-HIll, 1995
Buku Teks