| title | ISBN-13 | year of publication |
|---|---|---|
| Métodos de Investigación en Ciencias Socialess | 978-1-9758-5345-7 | 2017 |
| Raziskovalne Metode v Družboslovju | 978-1-9758-5339-6 | 2017 |
| Research Methods in Social Sciences | 978-1-9758-5329-7 | 2017 |
| Research Methods in Social Sciences | 978-1-9758-5332-7 | 2017 |
| Research Methods in Social sciences | 978-1-9758-5335-8 | 2017 |