“Development of a Highly Modified Asphalt With SBS Polymer from a Conventional Base Asphalt from the Ecopetrol Barrancabermeja 60-70 Refinery by Varying the Polymer Concentration”. 2021. BISTUA Revista De La Facultad De Ciencias Básicas, vol. 19, no. 2, Dec. 2021, pp. 34-39, https://doi.org/10.24054/bistua.v19i2.1067.