Zakki, A. T. I. A., M. Z. M. Salleh, S. Amran, and S. Harun. “Solubility Study of Lignin Monomeric Compounds in Deep Eutectic Solvents for Biomass Waste Pre-Treatment”. Journal of Biochemistry, Microbiology and Biotechnology, vol. 10, no. SP2, Dec. 2022, pp. 18-21, doi:10.54987/jobimb.v10iSP2.723.