- Author: Peter Wotschke (editor), Bert Bielefeld (editor)
- Language: English
- Year: 2017
Basics Budgeting
pdf
- Author: Bert Bielefeld, Roland Schneider
- Language: English
- Year: 2014
- Author: Ann-Christin Siegemund (editor), Bert Bielefeld (editor)
- Language: English
- Year: 2020
- Author: Roman Skowranek (editor), Bert Bielefeld (editor)
- Language: English
- Year: 2017
- Author: Bert Bielefeld (editor)
- Language: German
- Year: 2018
- Author: Bert Bielefeld, Isabella Skiba
- Language: German
- Year: 2010
- Author: Bert Bielefeld (editor)
- Language: German
- Year: 2018
- Author: Bert Bielefeld, Isabella Skiba
- Language: English
- Year: 2013
- Author: Pecco Becker (editor), Bert Bielefeld (editor)
- Language: English
- Year: 2019
- Author: Bert Bielefeld, Lars-Phillip Rusch
- Language: German
- Year: 2013