ROI Institute

year of pub­li­ca­ti­onISBNauthor(s)title
2007978-0-9790285-0-2Jack J. PhillipsProving the Value of Meetings and Events; How and Why to Measure ROI
  ''978-0-9790285-1-9Ph.D. Patricia Pulliam Phillips · Ph.D. Jack J. PhillipsProving the Value of HR-ROI Case Studies
2010978-0-9790285-3-3Patricia Pulliam · Phillips, Ja PhillipsProving the Value of HR: ROI Case Studies