![](/img/cover-not-exists.png)
The Need for Randomised Controlled Trials in Educational Research
Carole J. Torgerson, David J. TorgersonVolume:
49
Year:
2001
Language:
english
Pages:
13
DOI:
10.1111/1467-8527.t01-1-00178
File:
PDF, 118 KB
english, 2001