WALLIS, Ian 50 best business ideas:that changed the world Thatchanged the world - Ahmedabad Jaico Publishing House 2012 - xii,275 50 ; best ; business ; Changed ; ideas ; ideas:that ; That ; Thatchanged ; World ISBN: 9788184952841 Subjects--Topical Terms: Education (370) Dewey Class. No.: 370 WAL