Leet, Lewis Don
Prentice-Hall, 1958
Buku Teks
Easterbrook, Don J.
McGraw-Hill, 1969
Buku Teks
The Ronald Press , 1958
Buku Teks
Lewis, Paul
Princeton Architectural Press, 1998
Buku Teks
Summa, Don J.
American Institute of Certified Public Accountants, [date of publication not identified]
Buku Teks