YLBHI, 1997
Buku Teks
Demkin, Joseph A., editor
John Wiley & Sons, 2001
Buku Referensi
Edited by Cindy Coleman
McGraw-Hill, 2002
Buku Referensi
Turnock, Bernard J., author
Jones & Bartlett Learning, 2012
Buku Teks
Haydock, Roger S, author
West, 2011
Buku Teks