García Ramírez, Fabio, et al. “Analysis of the Impact of Information and Communication Technologies on Small and Medium-Sized Companies in Cartagena”. Saber, Ciencia Y Libertad, vol. 13, no. 2, June 2018, pp. 147-62, https://doi.org/10.18041/2382-3240/saber.2018v13n2.4630.