- Author: Stephanie Harzewski
- Language: English
- Year: 2011
- Author: Jessica Tiffin
- Language: English
- Year: 2009
- Author: Reinaldo Francisco Silva, Chris Gair, Aliki Varvogli
- Language: English
- Year: 2009
- Author: Mitchell Greenberg
- Language: English
- Year: 1994
- Author: Djelal Kadir, Terry Cochran
- Language: English
- Year: 1986
- Author: Shaun Seth, Shalini Saxena
- Language: English
- Year: 2015
- Author: Ana Lucia Araujo
- Language: English
- Year: 2015
- Author: Frances A. Shirley
- Language: English
- Year: 2015
- Author: Shalini Saxena, Britannica Educational Publishing Staff
- Language: English
- Year: 2014
- Author: Shalini Saxena, Britannica Educational Publishing Staff
- Language: English
- Year: 2013