M. de J. Zambrano Miranda, S. A. de la Cruz Almanza, J. A. Pinillos Villamizar, S. M. Botia Uribe, and I. C. Ramírez Arias, “ INFORMAL ENTREPRENEURSHIP IN MICROBUSINESSES IN COLOMBIA: EVIDENCE TAKEN FROM CUCUTA AND ITS METROPOLITAN AREA”, Semest. Econ., vol. 28, no. 65, pp. 1–24, Jul. 2025, doi: 10.22395/seec.v28n65a5054.