-. (2012). Metode Research: Penelitian Ilmiah (-.). Jakarta: Buki Aksara.
Chicago Style Citation-. Metode Research: Penelitian Ilmiah. -. Jakarta: Buki Aksara, 2012.
MLA Citation-. Metode Research: Penelitian Ilmiah. -. Jakarta: Buki Aksara, 2012.
Warning: These citations may not always be 100% accurate.