Rodolfo, J. S. .; Nebrida, A. P. A Biochar-Based Water Treatment System for Barangay Sawmill,Villaverde, Nueva Vizcaya. Int. J. Multidiscip. Appl. Bus. Edu. Res. 2024, 5 (10), 3951-3967. https://doi.org/10.11594/ijmaber.05.10.14.