M. Valencia Cárdenas, L. F. . Londoño Montoya, J. G. Vanegas López, L. F. . Londoño Montoya, and D. A. López Cadavid, “Financial Efficiency and Export Performance: an Empirical Approach: an empirical approach”, Semest. Econ., vol. 24, no. 56, pp. 77–103, Jul. 2021, doi: 10.22395/seec.v24n56a3.