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Vaishnavi, P., Sherene, J., Baskar, M., Vanniarajan, C., Ramjani, S., Senthil, K. and Selvamurugan, M. 2024. Characterization of biochar produced from paperboard sludge: A sustainable approach for waste management and resource recovery. Plant Science Today. 11, sp4 (Dec. 2024). DOI:https://doi.org/10.14719/pst.5810.