Navarro, R. G., Julio, J. C., Salazar, P. A., Cruz, A., & Papasin, B. D. (2026). Effect of Rice Hull Biochar as an Additive on the Shear Strength Parameters of Silty Sand. Central Mindanao University Journal of Science, 30(1), 74-84. https://doi.org/10.52751/cmujs.2026.v30.i1.evdz36f