John O Willis

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

Books by John O Willis

Pseudoscience
Kaufman Allison B.
Electronic book text: $52.95

Essentials of DAS...
Dumont, Ron
Paperback: $57.25

Essentials of IDE...
McBride, Guy
Electronic book text: