Ritter, FrankBaxter, GordonChurchill, Elizabeth2020-05-262020-05-262014Ritter, F. Baxter, G. Churchill, E. (2014). Foundations for Designing User-Centered Systems. London: Springer.https://dspace-uh-tmp.igniteonline.la/handle/cenit/5998442DIGITALPDFenBook