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- Language: English
- Year: 2003

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- Year: 2012

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- Language: English
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- Year: 2014

- Author: James Tar Tsaaior
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- Year: 2013

- Author: Safoura Salami-Boukari
- Language: English
- Year: 2012

- Author: Michael Chapman
- Language: English
- Year: 2008

- Author: Pierre Joris, Habib Tengour
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- Author: Carine Bourget
- Language: English
- Year: 2011