Gaya APA
WIERSMA, William. (2009).
Research methods in education .
America:
Pearson Education.
Gaya Chicago
WIERSMA, William.
Research methods in education.
America:
Pearson Education,
2009.
Text.
Gaya MLA
WIERSMA, William.
Research methods in education.
America:
Pearson Education,
2009.
Text.
Gaya Turabian
WIERSMA, William.
Research methods in education.
America:
Pearson Education,
2009.
Print.