1. Constructing knowledge and transforming the world;Ackerman,2004
2. Build, launch, convene: Sketches for constructive-dialogic learning environments;Ackerman,1999
3. A purposeful approach to the constant comparative method in the analysis of qualitative interviews;Boeije;Quality and Quantity,2002
4. A grounded investigation of game immersion;Brown,2004
5. The MediaMOO project: Constructionism and professional community;Bruckman,1996