| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Objectives, Competencies and Learning Outcomes: Developing Instructional Materials in Open and Distance Learning | 978-1-138-42140-0 (1-138-42140-5) | 2017 |
| Planning and Developing Open and Distance Learning: A Framework for Quality | 978-0-415-25480-9 (0-415-25480-9) | 2002 |