González-López, Óscar R., M. Buenadicha-Mateos, A. Barroso, and R. Sanguino. “Evaluation of the Online Presence of Family Firms: A Comparative Analysis Between Ibero-America and the US”. Journal of Small Business Strategy, vol. 31, no. 2, Apr. 2021, pp. 36-52, https://libjournals.mtsu.edu/index.php/jsbs/article/view/1779.