Nichols, P. (1991). Social survey methods: a field-guide for development workers. Oxford: Oxfam.
Bryman, A. (2016). Social Research Methods. Oxford, Oxford University Press.:
Secundária
Zwitter, A. (2016). Humanitarian Intelligence. A Practitioner's Guide to Crisis Analysis and Project Design. Maryland, Rowman & Littlefield Publishers.
Wolcott, H. F. (1990). Making A Study ?More Ethnographic.? Journal of Contemporary Ethnography, 19(1), 44?72.
Schiefer, U., L. Bal-Döbel, A. Batis, R. Döbel, J. Nogueira, P. Teixeira. (2007). Manual de Planeamento e Avaliação de Projectos. S. João do Estoril, Ed. Principia.
Della Porta, D., & Keating, M. (Eds.). (2008). Approaches and Methodologies in the Social Sciences. A Pluralist Perspective. Cambridge: Cambridge University Press.: