Gaya APA
Cook, Thomas D., Campbell, Donald T.. (1976).
Quasi-Experimentation .
US:
Houghton mifflin company.
Gaya Chicago
Cook, Thomas D., Campbell, Donald T..
Quasi-Experimentation.
US:
Houghton mifflin company,
1976.
.
Gaya MLA
Cook, Thomas D., Campbell, Donald T..
Quasi-Experimentation.
US:
Houghton mifflin company,
1976.
.
Gaya Turabian
Cook, Thomas D., Campbell, Donald T..
Quasi-Experimentation.
US:
Houghton mifflin company,
1976.
.