Beltrán Castro, P. E., K. B. García Molina, and C. J. Cordero Cabrera. “Analysis of the Carbon Footprint in Flexible Pavement Roads (asphalt): Second Order Roads in the Province of Azuay”. ConcienciaDigital, Vol. 4, no. 4.1, Nov. 2021, pp. 81-95, doi:10.33262/concienciadigital.v4i4.1.1927.