Expand your knowledge by taking a look at these useful SAGE titles below.

Business Wire (2014) TNS launches quick turnaround tool to identify winning concepts for business growth [online].

Economic and Social Research Council (2012) Framework for research ethics (2010), Updated September 2012 [online].

Teddlie, C. and Tashakkori, A. (2009) Foundations of Mixed Methods Research: Integrating Quantitative and Qualitative Approaches in the Social and Behavioral Sciences. Thousand Oaks, CA: Sage.