Nasution, S.
Metode research (penelitian ilmiah) : usul tesis, desain penelitian, hipotesis, validitas, sampling, populasi, observasi, wawancara, angket
Bumi Aksara, 1996
Buku Teks
Elmes, David G.
Metode penelitian dalam psikologi = Research methods in psychology
Salemba Humanika, 2014
Buku Teks
Research methods in geography: a critical introduction
Basil Gomez and John Paul Jones III, edited
Wiley-Blackwell, 2010
Buku Teks
Alston, Margaret
Research for social workers : an introduction to methods
Allen & Unwin, 1998
Buku Teks
Investigating communication: an introduction to research methods
Lawrence R. Frey...[et al.]
Prentice-Hall, 1991
Buku Teks