The Role of Task Focus and Involvement Load

- ISBN: 978-613-8-97251-8

- ISBN: 978-620-6-76879-1

the vrooming network....

- ISBN: 978-620-6-77035-0

- ISBN: 978-620-6-77192-0

Primary Education

- ISBN: 978-3-659-83976-4

- ISBN: 978-620-6-77546-1

- ISBN: 978-3-639-76964-7

From Ziggurats to Contemporary Design

- ISBN: 978-620-8-84683-1

- ISBN: 978-620-8-84687-9

2nd Edition

- ISBN: 978-3-659-84378-5