Gaya APA
Research Methodology a Step by Step Guide for Beginners. (2011).
London:
SAGE Publications.
Gaya Chicago
Research Methodology a Step by Step Guide for Beginners.
.
London:
SAGE Publications,
2011.
Buku.
Gaya MLA
Research Methodology a Step by Step Guide for Beginners.
.
London:
SAGE Publications,
2011.
Buku.
Gaya Turabian
Research Methodology a Step by Step Guide for Beginners.
London:
SAGE Publications,
2011.
Buku.