Stronguiló Leturia, M. L., and L. M. Chacón Febres. “Characterization of Residual Biomass from the Arequipa Region for the Production of Biofuels”. Enfoque UTE, vol. 6, no. 4, Dec. 2015, pp. pp. 42 - 54, doi:10.29019/enfoqueute.v6n4.77.