National Academy of Sciences-National Research Council , 1963
Buku Teks
Agarwala, S. N.
Tata McGraw-Hill, 1977
Buku Teks
Peters, Gary L., author
Kendall/Hunt, 1983
Buku Teks
edited by Quentin H. Stanford
Oxford University Press, 1972
Buku Teks
Zito, George V., author
Human Science Press, 1979
Buku Teks