Andersen, Roy R., author
Pearson/Prentice Hall, 2007
Buku Teks
Andersen, Roy R., author
Longman, 2012
Buku Teks
Halpern, Manfred, author
Princeton University Press, 1963
Buku Teks
Palmer, Monte, author
Thomson Wadsworth, 2007
Buku Teks
Bill, James A., author
Littel Brown and Company, 1984
Buku Teks