Bibliografia  
             
            
    Principal
            
                  		- 	Creswell, J. W. 
	(2013) 
            Qualitative Inquiry & Research Design: Choosing among Five Approaches 
    	(3rd edition) - London: Sage
- 	Kumar, R. 
	(2012) 
            Research Methodology: A Step-by-Step Guide for Beginners 
    	London: Sage
- 	Sarakantos, S. 
	(2012) 
            Social Research 
    	Sarantakos, S. (2013) Social Research (4th edition). Londres: Red Globe Press.
- 	Bryman, A. 
	(2012) 
            Social Research Methods 
    	New York: Oxford University Press
- 	Babbie, E. 
	(2016) 
            The Practice of Social Science Research 
    	Boston: Cengage Learning.
- 	Creswell, J. W. & Creswell, J. D. 
	(2022) 
            Research Design: Qualitative, Quantitative, and Mixed Methods Approaches 
    	Los Angeles, CA: Sage
Secundária
            Não foi definida bibliografia secundária