Weston, J. Fred (John Fred), 1916-
Dryden Press, 1992
Buku Teks
Weston, J. Fred (John Fred), 1916-
Dow Jones-Irwin, 1982
Buku Teks
Macmillan, 1973
Buku Teks
Schall, Lawrence D.
McGraw-Hill 1982, 1982
Buku Teks
Gallagher, Timothy J.
Prentice-Hall, 1997
Buku Teks