Radjou, Navi. Frugal innovation : How to do better with less / by Navi Radjou and Jaideep Prabhu. - Penguin Random House : Profile books, 2019. - 272 p. : ill.; 24 cm ISBN: 9781781257609 Subjects--Topical Terms: Technological innovations. Dewey Class. No.: 658.4063 / RAD/F