Biscaia, Ana Rita, Maria João e Ma Rosa, Patrícia Moura e Sá, and Cláudia  Sarrico. ?Assessing Customer Satisfaction And Loyalty In The Retail Sector?. International Journal Of Quality & Reliability Management 34. International Journal Of Quality & Reliability Management  (2017): 1508?1529. doi:10.1108/ijqrm-03-2015-0039.