APA Style
Dahlan, Sopiyudin. (2014).
Menelaah Validitas Penelitian Observasional / Sopiyudin Dahlan .
Jakarta:
Sagung Seto.
Chicago Style
Dahlan, Sopiyudin.
Menelaah Validitas Penelitian Observasional / Sopiyudin Dahlan.
Jakarta:
Sagung Seto,
2014.
Text.
MLA Style
Dahlan, Sopiyudin.
Menelaah Validitas Penelitian Observasional / Sopiyudin Dahlan.
Jakarta:
Sagung Seto,
2014.
Text.
Turabian Style
Dahlan, Sopiyudin.
Menelaah Validitas Penelitian Observasional / Sopiyudin Dahlan.
Jakarta:
Sagung Seto,
2014.
Print.