- Author: George G. Potra
- Language: Romanian
- Year: 2015
- Author: George G. Potra
- Language: Romanian
- Year: 2015
- Author: George G. Potra
- Language: Romanian
- Year: 2011
- Author: Adrian Năstase George G. Potra
- Language: Romanian
- Year: 2008
- Author: George G. Potra
- Language: Romanian
- Year: 2015
- Author: George G. Potra
- Language: Romanian
- Year: 2012
- Author: George G. Potra
- Language: Romanian
- Year: 2011
- Author: George G. Potra
- Language: Romanian
- Year: 2012