Perez, Y., Gonzalez, A., Castillo, J., Sanchez, A., Oliveira, P., & Pichara, C. (2019). Obtaining and characterization of pellets based on walnut shells, waste paper and paperboard. Rev. Téc. Fac. Ing. Univ. Zulia, 42(3), 181-186. Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/30217