Furlong, Nancy E., author
Harcourt College Publishers, 2000
Buku Teks
Bordens, Kenneth S., author
McGraw-Hill, 2002
Buku Teks
Bordens, Kenneth S., author
McGraw-HIll, 2005
Buku Teks
Moore, Brookee Noel, author
McGraw-Hill, 2015
Buku Teks
Moore, Brooke Noel, author
McGraw-Hill, 2004
Buku Teks