Mardaga
- Mardaga published the following 2 sources, containing a total of 8 diagrams.
- Peeters, Marc, and Sébastien Richard. 2009. Logique formelle. Wavre: Mardaga. (7 diagrams)
- Vernant, Denis. 1986. Introduction à la philosophie de la logique. Bruxelles: Mardaga. (1 diagram)