Sandler, Ben-Zion, author
Prentice-Hall, 1991
Buku Teks
Norton, Robert L., author
McGraw-Hill, 1992
Buku Teks
Norton, Robert L., author
McGraw-Hill, 2012
Buku Teks
Mabie, Hamilton H.
John Wiley & Sons, 1978
Buku Teks
Carlson, Anton J., author
University of Chicago, 1963
Buku Teks