- Author: I. Ivanova J. Pestune B. Skrindževska
- Language: Русский
- Year: 2009
- Author: I. Dubiņa L. Silova A. Vēvers I. Vīduša
- Language: Latvian
- Year: 2009
- Author: J. Mencis (sen.) J. Mencis (jun.)
- Language: Latvian
- Year: 2008
- Author: E. Krastiņa E. Volāne E. Drelinga
- Language: Latvian
- Year: 2015
- Author: E. Marčenko Z. Saveļjeva
- Language: Русский
- Year: 2006
- Author: E. Marčenko Z. Saveļjeva
- Language: Русский
- Year: 2011
- Author: E. Marčenko Z. Saveļjeva
- Language: Русский
- Year: 2009
- Author: S. Goldmane A. Kļaviņa I. Misāne L. Straube
- Language: Latvian
- Year: 2013
- Author: J. Mencis (sen.) J. Mencis (jun.)
- Language: Latvian
- Year: 2011
- Author: V. Matisāne I. Flečere
- Language: English
- Year: 2009