![](/img/cover-not-exists.png)
Quasi-Experimental Research Designs || Pre-Experimental Research Designs
Thyer, Bruce A.Volume:
10.1093/ac
Year:
2012
Language:
english
DOI:
10.1093/acprof:oso/9780195387384.003.0002
File:
PDF, 303 KB
english, 2012