Introduction to educational research
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Boston
          Pearson/Allyn and Bacon
    
        c2005. | 
| Rhifyn: | 5th ed. | 
| Pynciau: | 
| Prif Awdur: | |
|---|---|
| Awduron Eraill: | |
| Fformat: | Llyfr | 
| Iaith: | English | 
| Cyhoeddwyd: | Boston
          Pearson/Allyn and Bacon
    
        c2005. | 
| Rhifyn: | 5th ed. | 
| Pynciau: |