1
Hammersley M. What is qualitative research? London: Bloomsbury Academic 2013.
2
Hammersley M. What is qualitative research? London: Bloomsbury Academic 2013.
3
Halperin S, Heath O. Political research: methods and practical skills. Second edition. New York, NY: Oxford University Press 2017.
4
Harrison L. Political research: an introduction. London: Routledge 2001.
5
Pierce R. Research methods in politics: a practical guide. London: Sage Publications 2008.
6
Harrison L. Political research: an introduction. London: Routledge 2001.
7
Halperin S, Heath O. Political research: methods and practical skills. Second edition. New York, NY: Oxford University Press 2017.
8
Pierce R. Research methods in politics: a practical guide. London: Sage Publications 2008.
9
Fielding N. Qualitative Interviewing. In: Gilbert GN, Stoneman P, eds. Researching social life. Los Angeles: Sage 2008:245–65.
10
Hooghe L. Images of Europe: Orientations to European Integration among Senior Officials of the Commission. British Journal of Political Science. 1999;29:345–67. doi: 10.1017/S0007123499000150
11
Edwards R, Holland J. What is qualitative interviewing? London: Bloomsbury 2013.
12
Burnham P. Research methods in politics. 2nd ed. Basingstoke, Hampshire: Palgrave Macmillan 2008.
13
Halperin S, Heath O. Political research: methods and practical skills. Second edition. New York, NY: Oxford University Press 2017.
14
Harrison L. Political research: an introduction. London: Routledge 2001.
15
Pierce R. Research methods in politics: a practical guide. London: Sage Publications 2008.
16
McEvoy J. Elite Interviewing in a Divided Society: Lessons from Northern Ireland. Politics. 2006;26:184–91. doi: 10.1111/j.1467-9256.2006.00267.x
17
Edwards R, Holland J. What is qualitative interviewing? London: Bloomsbury 2013.
18
Kvale S, Brinkmann S. InterViews: learning the craft of qualitative research interviewing. Third edition. Los Angeles: Sage Publications 2015.
19
Arksey H, Knight P. Interviewing for social scientists: an introductory resource with examples. London: Sage Publications 1999.
20
Arksey H, Knight P. Interviewing for social scientists: an introductory resource with examples. London: SAGE 1999.
21
Bogner A, Littig B, Menz W. Interviewing experts. Basingstoke: Palgrave Macmillan 2009.