Bardin, Laurence (2000), Análise de Conteúdo, Lisboa, Edições 70.
Bryman, Alan (2016), Social Research Methods (5th ed.), Oxford, Oxford University Press.
Burgess, Robert G. (2001), A Pesquisa de Terreno. Uma Introdução, Oeiras, Celta Editora.
Denzin, Norman S. e Yvonna S. Lincoln (eds.) (2000), The SAGE Handbook of Qualitative Research, Londres, Sage.
Flick, Uwe (2005), Métodos qualitativos na investigação científica, Lisboa, Monitor.
Plummer, Ken (2001), Documents of life 2: An invitation to a critical humanism, London, Sage.
Ragin, Charles C. e H. Becker (eds.) (1992), What is a Case? Exploring the Foundations of Social Inquiry, Cambridge, Cambridge University Press.
Ragin, Charles (1994), Constructing Social Research. The Unity and Diversity of Method, Thousand Oaks, Pine Forge.
Seale, Clive, Giampietro Gobo, Jaber F. Gubrium e David Silverman (eds.) (2004), Qualitative Research Practice, London, Sage.
Shaw, Ian & Nick Gould (2001), Qualitative Research in Social Work, London. Sage.
Silverman, David (ed.) (2011), Qualitative Research (3rd ed.), London, Sage.
Almeida, João Ferreira de, Fernando Luís Machado, Luís Capucha e Anália Torres (1994), “Metodologia da pesquisa empírica”, em João Ferreira de Almeida (coord.), Introdução à Sociologia, Lisboa, Universidade Aberta, pp. 13-33; pp. 193-213; pp. 212-222.:
Secundária
Bertaux, Daniel (ed.) (1981), Biography and Society. The Life History Approach in Social Sciences, Beverly Hills, Sage.
Creswell, John W. & J. David Creswell (2018), Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (5th edition), Thousand Oaks, Sage.
Flick, Uwe (2014), An Introduction to Qualitative Research, 5th edition, London, Sage.
Foddy, William (1996), Como perguntar. Teoria e Prática da construção de perguntas para entrevistas e questionários, Oeiras, Celta Editora.
Gubrium, Jaber F., James A. Holstein, Amir B. Marvasti e Karyn D. McKinney (eds) (2012), The SAGE Handbook of Interview Research: The Complexity of the Craft, Thousand Oaks, Sage.
Guerra, Isabel (2006), Pesquisa Qualitativa e Análise de Conteúdo. Sentidos e formas de uso, São João do Estoril, Principia.
Joubert, Lynette & Martin Webber (eds.) (2020), The Routledge Handbook of Social Work Practice Research, Abingdon, Routledge.
Kuckartz, Udo e Stefan Rädiker (2019), Analyzing Qualitative Data with MAXQDA: Text, Audio, and Video, Springer.
Maxwell, Joseph A. (2005), Qualitative Research Design: An Interactive Approach, Thousand Oaks: Sage Publications.
Padgett, Deborah K. (2017), Qualitative Methods in Social Work Research, 3rd edition, Thousand Oaks, Sage.
Pinto, José Madureira e Augusto Santos Silva (orgs.) (1984), Metodologia das Ciências Sociais, Porto, Edições Afrontamento.
Poirier, Jean, Chapier-Valadon, Simone e Paul Raybaut (1995), Histórias de Vida: Teoria e Prática, Oeiras, Celta.
Quivy, Raymond e Luc Campenhout (1992), Manual de Investigação em Ciências Sociais, Lisboa, Gradiva.
Silverman, David (2000), Doing Qualitative Research: A Practical Handbook, London: Sage.
Strauss, Anselm e Juliet Corbin (1990), Basics of Qualitative Research: Grounded Theory Procedures and Techniques, London, Sage.
Thyer, Bruce A. (ed.) (2011), The Handbook of Social Work Research Methods, Thousand Oaks, Sage.: