Gaya APA
Skala Pengukuran Variabel-Variabel Penelitian. (2005).
:
.
Gaya Chicago
Skala Pengukuran Variabel-Variabel Penelitian.
.
:
,
2005.
Textbook.
Gaya MLA
Skala Pengukuran Variabel-Variabel Penelitian.
.
:
,
2005.
Textbook.
Gaya Turabian
Skala Pengukuran Variabel-Variabel Penelitian.
:
,
2005.
Textbook.