Norman, Donald A. (1 January 1986). Norman, Donald A; Draper, Stephen W (eds.). User Centered System Design. Taylor & Francis. doi:10.1201/b15703. ISBN9781482229639.
Patnaik, Dev, "Forget Design Thinking and Try Hybrid Thinking", Fast Company, August 25, 2009. "... design thinking is any process that applies the methods of industrial designers to problems beyond how a product should look. My mentor at Stanford, Rolf Faste, did more than anyone to define the term and express the unique role that designers could play in making pretty much everything."
Faste, Rolf, "Ambidextrous Thinking", Innovations in Mechanical Engineering Curricula for the 1990s, American Society of Mechanical Engineers, November 1994