:::::::This would not be acceptable. Unless the book gained some source of authoritativeness as it was translated  for instance, if it were peer-reviewed in another language, or if it were printed by a significant publisher (the kind that expects to make a profit by selling the book, not by being paid to print it)  then it's not a reliable source, and thus there are no reliable sources that call the Kemeny-Young method "VoteFair". Also, you're playing with Wikipedia rules. It doesn't make a conflict of interest go away if you get someone else to add something for you.  /