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- Language: English
- Year: 2017
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- Year: 2013
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- Language: English
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- Language: English
- Year: 2017
- Author: Chung Paul S
- Language: English
- Year: 2017
- Author: Jaarsma Ada S., Kierkegaard Sren
- Language: English
- Year: 2017
- Author: Tony Milligan
- Language: English
- Year: 2015
- Author: Asa A. Schillinger-Kind
- Language: Italian
- Year: 1999
- Author: Albert Camus
- Language: English
- Year: 1979