TY  - BOOK
AU  - Akker,J.J.H.van den
TI  - Educational design research
SN  - 9780415396356
AV  - LB1028.38 E382 2006
PY  - 2006///
CY  - London
PB  - Routledge
KW  - Instructional systems
KW  - Design
KW  - Research
N1  - Includes bibliographical references and index
ER  -