Reference sources are invaluable for defining key concepts, providing brief overviews of a subject, and identifying major theories and research developments. They can provide you with the background you need to select and develop a topic of research, or help you explore internship or career opportunities.
The Reference Guide to Data Sources by 
The SAGE Dictionary of Sociology by 
The SAGE Encyclopedia of Social Science Research Methods by 
Interviewing in Social Science Research by 
The SAGE Handbook of Qualitative Research by 
Introduction to Qualitative Research Methods by 
