Arantes, F. P., M. S. Batista Freitag, and E. L. Silva Santos. “Improvisation and Learning of Informal Entrepreneurs: The Experience of Fair Marketer Entrepreneurs”. REGEPE Entrepreneurship and Small Business Journal, vol. 7, no. 3, Sept. 2018, pp. 30-57, doi:10.14211/regepe.v7i3.921.