About Viva Ona Bartkus Books by Viva Ona Bartkus Business on the Edge How to Turn a Profit and Improve Lives in the World's Toughest Places by (author) Viva Ona Bartkus & Emily S. Block Business on the Edge How to Turn a Profit and Improve Lives in the World’s Toughest Places by (author) Viva Ona Bartkus & Emily S. Block
