APA Citation

Dahlan, M. S. (2014). Menelaah Validitas Penelitian Observasional. Sagung Seto.

Chicago Style Citation

Dahlan, M. Sopiyudin. Menelaah Validitas Penelitian Observasional. Sagung Seto, 2014.

MLA Citation

Dahlan, M. Sopiyudin. Menelaah Validitas Penelitian Observasional. Sagung Seto, 2014.

Warning: These citations may not always be 100% accurate.