David, H.A., author
John Wiley & Sons, 1981
Buku Teks
Fleming, Michael C., author
Rouledge, 1994
Buku Teks
Freund, John E., author
Prentice-Hall, 1980
Buku Teks
Wonnacott, Ronald J., author
John Wiley & Sons, 1982
Buku Teks
Peck, Roxy., author
Cebgage Learning, 2016
Buku Teks