- Author: Sander Mak Paul Bakker
- Language: English
- Year: 2017
- Author: Anneke B. Mulder-Bakker, Jocelyn Wogan-Browne
- Language: English
- Year: 2005
- Author: Bakker Jim, Messner Tammy Faye, Wigger John H
- Language: English
- Year: 2017
- Author: Paul J.J.M. Bakker Emmanuel Faye Christophe Grellard
- Language: French
- Year: 2002
- Author: Bakker Peter.
- Language: English
Akka in Action
pdf
- Author: Raymond Roestenburg Rob Bakker Rob Williams
- Language: English
- Year: 2016
- Author: Paul Bakker Sander Mak
- Language: English
- Year: 2017