Votaw, Dow
Prentice-Hall, 1973
Buku Teks
Weston, John Fred, 1916-, author
Prentice-Hall, 1990
Buku Teks
Benninga, Simon Z.
McGraw-Hill, 1997
Buku Teks
Ross, Stephen A., author
Richard D. Irwin, 1990
Buku Teks
Ross, Stephen A., author
McGraw-Hill , 1999
Buku Teks