The following list of journal articles and books provide extended reading on topics covered in chapter 14 in the second edition. Please note that journal articles are free to access, whereas book extracts (denoted by methods.sagepub.com URLs) require your university to have a subscription to SAGE Research Methods.

Carmichael, P. (2008). Secondary qualitative analysis using internet resources. In N. Fielding, R. M. Lee, & G. Blank (Ed.), The SAGE handbook of online research methods. London: Sage.
This chapter explains how researchers can use networked technologies to access and analyze qualitative secondary data.

Burton, D. (2000). Research training for social scientists. London: Sage.
Chapter 24 on Secondary data analysis provides an overview of the advantages and disadvantages of using numerical secondary data sources and introduces possible sources of data.

Heaton, J. (2004). Reworking qualitative data. London: Sage.
This extract provides an introduction to using non-numerical secondary data in social research. It is structured around three themes: a general overview of the analysis of pre-existing data in social research, followed by a discussion of the functions and the modes of secondary analysis.