Robert C. Arffa
John Wiley & Sons, 2001
Buku Teks
Weinstein, Bob, author
John Wiley & Sons, 1982
Buku Teks
Morgan, James N., author
Prentice-Hall, 1955
Buku Teks
Troelstrup, Arch W., author
McGraw-Hill , 1978
Buku Teks
Garman, E. Thomas, author
Houghton Miffiln, 1985
Buku Teks