edited by Linn C. Stuckenbruck
Addison-Wesley, 1981
Buku Referensi
Demkin, Joseph A., editor
John Wiley & Sons, 2001
Buku Referensi
Boston: Houghton: 1993,
Buku Referensi
Hansen, Karen Lee, author
John Wiley & Sons, 2011
Buku Referensi
Edited by Cindy Coleman
McGraw-Hill, 2002
Buku Referensi