Gaya APA
Practical evaluation. (1982).
California:
Sage Publications Inc..
Gaya Chicago
Practical evaluation.
.
California:
Sage Publications Inc.,
1982.
Buku.
Gaya MLA
Practical evaluation.
.
California:
Sage Publications Inc.,
1982.
Buku.
Gaya Turabian
Practical evaluation.
California:
Sage Publications Inc.,
1982.
Buku.