NASUTION, S. (2006). Metode research (penelitian ilmiah): Usul tesis, desain penelitian, hipotesis, validitas, sampling, populasi, observasi, wawancara, angket. Bumi Aksara.
Chicago Style (17th ed.) CitationNASUTION, S. Metode Research (penelitian Ilmiah): Usul Tesis, Desain Penelitian, Hipotesis, Validitas, Sampling, Populasi, Observasi, Wawancara, Angket. Bumi Aksara, 2006.
MLA (8th ed.) CitationNASUTION, S. Metode Research (penelitian Ilmiah): Usul Tesis, Desain Penelitian, Hipotesis, Validitas, Sampling, Populasi, Observasi, Wawancara, Angket. Bumi Aksara, 2006.
Warning: These citations may not always be 100% accurate.