Melton, William C., author
Dow Jones-Irwin, 1985
Buku Teks
Kurihara, Kenneth K., author
W.W. Nortorn, 1950
Buku Teks
Fisher, Douglas, author
Richard D. Irwin , 1980
Buku Teks
Kreps, Cliften H., author
Ronald Press, 1967
Buku Teks
Kurihara, Kenneth K., author
Allen & Unwin, 1951
Buku Teks