Nussbaum, Robert L., author
Saunders Elsevier, 2007
Buku Teks
Springer, 2012
eBooks
Harris, Harry, author
Gadjah Mada University Press , 1994
Buku Teks
Harris, Harry, author
Gadjah Mada University Press, 1980
Buku Teks
Strickberger, Monroe W., author
Macmillan, 1985
Buku Teks