Wilson, Edmund, 1895-1972, author
Doubleday & Co., 1972
Buku Teks
Valentine, Jerome L.
The Research Foundation of The Institute of Chartered Financial Analysis, 1980
Buku Teks
King, Michael
Heineman, 1984
Buku Teks
Minkova, Donka, author
Cambridge University Press, 2009
eBooks
Buku Teks