Seeeions, Laura Steibel, author
Prentice-Hall, 1982
Buku Teks
French, Jack, 1932-, author
John Wiley & Sons, 1981
Buku Teks
Gregory, Robert Henry, author
Wadsworth, 1963
Buku Teks
Fried, Louis, author
Reston Publishing, 1979
Buku Teks
Vazsonyi, Andrew, author
Richard D. Irwin, 1980
Buku Teks