edited by Jeffrey J. Magnavita
John Wiley & Sons, 2003
Buku Teks
Hansen, Karen Lee, author
John Wiley & Sons, 2011
Buku Referensi
edited by W.A. Paton
Ronald Press, 1955
Buku Teks
Prentice-Hall, 1991
Buku Referensi
Frederick S. Merritt and Jonathan T. Ricketts, editor
McGraw-Hill, Inc, 1994
Buku Referensi