Sangnak, S. ., A. . Neramittagapong, S. . Neramittagapong, S. . Theerakulpisut, and P. . Sriprom. “Optimization of Vanillin Production from Lignin Using Catalytic Depolymerization over a CuO/Al2O3 Catalyst”. Applied Environmental Research, vol. 45, no. 1, Mar. 2023, doi:10.35762/AER.2023005.