- Author: McWhorter John H
- Language: English
- Year: 2013
- Author: Mark Abley
- Language: English
- Year: 2009
- Author: Paul Hermann
- Language: German
- Year: 1898
- Author: Kiss Sándor, Mondin Luca, Salvi Giampaolo
- Language: French
- Year: 2011
- Author: Croft William
- Language: English
- Year: 2000
- Author: Cuza Alejandro, Czerwionka Lori, Olson Daniel J.
- Language: English
- Year: 2016