Rivera Salazar, Juan Esteban. “Medellín Has Exporting Potencial In Tertiarization of Information-Technology (ITO) and Knowledge- Processes (KPO) Services: Challenges and Strenghts”. Online Journal Mundo Asia Pacifico, vol. 7, no. 13, Feb. 2019, pp. 5-18, https://doi.org/10.17230/map.v7.i13.01.