Imagination, production, and collaboration in project-based learning using multimedia. - William R. Penuel; Christine Korbak; Karen A. Cole; Otak Jump (CSCL, 1999)

The mediating role of coherence in curriculum implementation. - William R. Penuel; Barry J. Fishman; Lawrence P. Gallagher; Christine Korbak; Bladimir Lopez-Prado (ICLS (2), 2008)