Simpson, Henry, author
McGraw-Hill, 1985
Buku Teks
Kraft, George D., author
Prentice-Hall, 1981
Buku Teks
Johnson, Lyle R., author
Prentice-Hall, 1971
Buku Teks
Tyson, Lois, 1950-, author
Routledge, 2006
Buku Teks
Wilson, Ira G., author
John Wiley & Sons, 1965
Buku Teks