Singh, Avtar, author
Prentice-Hall, 1989
Buku Teks
Harman, Thomas L., 1942-, author
Prentice-Hall, 1991
Buku Teks
Axelson, Jan, author
Lakeview Research , 2000
Buku Teks
Brey, Barry B., author
Pearson, 2014
Buku Teks
Stone, Harold S., 1938-, author
Addison-Wesley, 1982
Buku Teks