Halter, C. P. (2024). Research Methods in Education Sciences (First Edition). https://www.academia.edu/38590936/Research_Methods_in_Education_Sciences_First_Edition CC BY-NC-SA 4.0; CC BY-NC-SA 4.0 (2019) IBSN: 978-0-578-47226-3.
Chicago ZitierstilHalter, Christopher P. Research Methods in Education Sciences (First Edition). https://www.academia.edu/38590936/Research_Methods_in_Education_Sciences_First_Edition CC BY-NC-SA 4.0; CC BY-NC-SA 4.0 (2019) IBSN: 978-0-578-47226-3, 2024.
MLA ZitierstilHalter, Christopher P. Research Methods in Education Sciences (First Edition). https://www.academia.edu/38590936/Research_Methods_in_Education_Sciences_First_Edition CC BY-NC-SA 4.0; CC BY-NC-SA 4.0 (2019) IBSN: 978-0-578-47226-3, 2024.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.