The Recall method in social surveys / edited by Louis Moss and Harvey Goldstein
University of London Institute of Education, 1979
 Buku Teks
Frey, James H.
Survey research by telephone
Sage Publications, 1983
 Buku Referensi
Fern, Edward F.
Advanced focus group research
Sage, 2001
 Buku Teks
Magnusson, Eva
Doing interview-based qualitative research : a learner's guide
Cambridge University Press, 2015
 Buku Teks
Brinkmann, Svend
InterViews : learning the craft of qualitative research interviewing
Sage Publications , 2015
 Buku Teks