Saraiva, P, M.  Rosa, and J.L.  D'Orey. ?Applying An Excellence Model To Schools?. Quality Progress 36. Quality Progress  (2003): 46-51.

Saraiva, P, A.  Tadeu, J.  Orey, and M.  Rosa. ?Product Certification And Portugal's Construction Industry Goal Is To Improve Competitive Position In European Union?. Quality Progress 32. Quality Progress  (1999): 107-114.