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