Gaya APA
Group. (2014).
Pearson new internasional edition (Fifth).
UNITED KINGDOM:
Pearson International Education.
Gaya Chicago
Group.
Pearson new internasional edition.
Fifth
UNITED KINGDOM:
Pearson International Education,
2014.
Text.
Gaya MLA
Group.
Pearson new internasional edition.
Fifth
UNITED KINGDOM:
Pearson International Education,
2014.
Text.
Gaya Turabian
Group.
Pearson new internasional edition.
Fifth
UNITED KINGDOM:
Pearson International Education,
2014.
Print.