Tórrez-Rivas, B.J., J.R. Gaitán-Arévalo, L.J. Espinoza-Pérez, and J.I. Escalante-García. 2014. “Valuation Ash Bagasse Nicaraguan Sugar Industry As Part Portland Cement Substitute”. Nexo Scientific Journal 27 (2):82-89. https://doi.org/10.5377/nexo.v27i2.1944.