Bibliografia  
                        
          
              Principal
            
                  		-             Social Science Research: Principles, Methods and Practices: 
    	Bhattacherjee, A.
	2012
	
-             Social Research Methods: 
    	Bryman, A.
	2008
	
-             Research Design: Quantitative, Qualitative and Mixed Methods: 
    	Creswell, J.
	2009
	
-             Mixed Methods in Social Inquiry: 
    	Greene, J.
	2007
	
-             Handbook of Research Design and Social Measurement: 
    	Miller, D.
	1991
	
-             Social Research Methods: Qualitative and Quantitative Approaches: 
    	Newman, W. L.
	2003
	
-             International Development Studies: Theories and Methods in Research and Practice: 
    	Sumner, A. & Tribe, M.
	2008
	
-             An Introduction to the Philosophy of Science: 
    	Staley, K.
	2014
	
-             Case Study Research, Design and Methods: 
    	Yin, R.
	1994
	
Secundária
            Não foi definida bibliografia secundária