1. Wherefore art thou, questionnaire?;Bachtler;Frontier,1984
2. A comparison of the check-list and the open response/questioning systems;Belson;Appl. Statist.,1982
3. The limitations of unqualitative research;Bloom;Ind. Marketing Dig.,1988
4. Interviewing: the social phenomenology of a research instrument;Brenner,1978
5. Learning How to Ask: a Sociolinguistic Appraisal of the Role of the Interview in Social Science Research;Briggs,1988