John O Willis

John O Willis is the author of "Essentials of Idea for Assessment Professionals", "Essentials of IDEA for Assessment Professionals" and "Essentials of das-II Assessment".

Books by John O Willis

Essentials of das...
Dumont, Ron
Digital download:

Essentials of IDE...
McBride, Guy
Multiple-item retail product, part(s) enclosed: $60.95

Essentials of das...
Dumont, Ron
Electronic book text: $110.00

Essentials of IDE...
McBride, Guy
Digital download: