"An in-depth tool to support mobile business research."
– ALA/RUSA Business Reference And Service Section (BRASS)
I highly recommend this book to both researchers and practitioners in the industry as an invaluable desktop reference. This book will not only aid practitioners in what they are currently doing with mobile business, but will also open up numerous directions for further investigative research work.
– Dr. Elaine Lawrence, University of Technology, Sydney, Australia
Unhelkar's volumes are research intensive demonstrating how the business and technology sectors are supporting each other to make mobile business more secure, ubiquitous, and successful.
– Julia Gelfand, University of California, USA