RUBIN, Ronald. Putting Your Business on the Map: Geographic Information Systems for Small Business. Journal of Small Business Strategy, [S.l.], v. 10, n. 2, p. 1-19, june 1999. ISSN 2380-1751. Available at: <https://libjournals.mtsu.edu/index.php/jsbs/article/view/411>. Date accessed: 20 jan. 2020.