by Roger Fisher and William Ury
by Darren Hardy
by John Harvey Jones
by Blake Masters
by Daniel Et.al Moynihan
by Stephen R. Covey
by A.P.J. Abdul Kalam
by paul Watkins
by G. Kingsley Ward
by Napoleon Hill
by James Clear
by Mark manson
by John Naisbitt
by Anita Bhogle & Harsha Bhogle
by Shiv Khera
by Marshall Goldsmith
by Arne L.Kalleberg
by Dale Carnegi
by Dale Carnegie
