Valderrama, C., Ortiz, J. D., Usa, M. M. and Borrero, O. I. (2020) “Analysis of the Recycling Sector in Intermediate Cities. Study Case – Neiva, Colombia”, Ingeniería y Competitividad, 22(2), pp. 1–10. doi: 10.25100/iyc.v22i2.6252.