A. T. I. A. Zakki, M. Z. M. Salleh, S. Amran, and S. Harun, “Solubility Study of Lignin Monomeric Compounds in Deep Eutectic Solvents for Biomass Waste Pre-treatment ”, J Biochem Microbiol Biotechnol, vol. 10, no. SP2, pp. 18–21, Dec. 2022.