Gaya APA
Qualitative evaluation methods. (1979).
California:
Sage Publications Inc..
Gaya Chicago
Qualitative evaluation methods.
.
California:
Sage Publications Inc.,
1979.
Buku.
Gaya MLA
Qualitative evaluation methods.
.
California:
Sage Publications Inc.,
1979.
Buku.
Gaya Turabian
Qualitative evaluation methods.
California:
Sage Publications Inc.,
1979.
Buku.