- Author: Christian Posthoff
- Language: German
- Year: 2023
- Author: André Schulz
- Language: German
- Year: 2022
- Author: Ion Petrica, Cornel Stefan, Stefan Alexe
- Language: Romanian
- Year: 1985
- Author: Moyo Dambisa
- Language: English
- Year: 2010
- Author: Mammone Andrea, Parini Ercole Giap, Veltri Giuseppe A
- Language: English
- Year: 2018
- Author: Hollander Jack M
- Language: English
- Year: 2003
- Author: Diamandis Peter H., Kotler Steven
- Language: English
- Year: 2014
- Author: Bok Derek Curtis
- Language: English
- Year: 1982