Oblitas-Cruz, Jimy Frank, Jose Cruz, José Martín Baas-López, and Beatriz Escobar-Morales. “Biochar Characterization Obtained from Citrus Aurantifolia Waste Using Raman and FTIR Spectroscopy Coupled With Principal Component Analysis”. LACCEI 1, no. 12 (July 27, 2025). Accessed October 2, 2026. https://proceedings.laccei.org/index.php/laccei/article/view/4494.