age ~73
from Shipshewana, IN
Author
Roger Kaufman
ISBN #
0608262129
Author
Roger Kaufman
ISBN #
0803960204
Author
Roger Kaufman
ISBN #
0803962037
Author
Roger Kaufman
ISBN #
0803962371
Roger Kaufman, Ph.D. is an influential figure in the history of the educational technology (see also Instructional design) and performance improvement fields as ...