1. Developing educational software: integrating disciplines and media;Van der Mast,1995
2. Case study of a National Educational Software Development Program in the Netherlands;Van der Mast;Machine-Mediated Learn.,1991
3. Designing the user interface;Shneiderman,1992
4. From an interview with Thomas Moran;Moran,1994
5. The elements of friendly software design;Heckel,1991