Class notes in portuguese on the online course "Entrepreneurship from idea to launch" from Dr. Jeff Cornwall avaliable at: https://www.udemy.com/entrepreneurship-from-idea-to-launch/ Anotações feitas no curso "Empreendedorismo da ideia ao lançamento" do Dr. Jeff Cornwall disponível gratuitamente: https://www.udemy.com/entrepreneurship-from-idea-to-launch/