Research methods: guidance for postgraduates
edited by Tony Greenfield
Arnold, 1996
Buku Teks
The Methodology of comparative research
edited by Robert T. Holt
Free Press, 1970
Buku Teks
Winardi
Pengantar metodologi research
Alumni, 1979
Buku Teks
Holloway, Immy
Basic concepts for qualitative research
Blackwell Science, 1997
Buku Teks
Leedy, Paul D.
Practical research: planning and design
Pearson Education, 2005
Buku Teks