[1]
A.H. Hassan, M. Mohammad Zainol, K.R. Zainuddin, N.Q. Saperi, M.A. Mohammed Yussuf, N.A. Rahman, N.A.N. Mohd Nor Azman, Sulfonated Carbon Catalyst Prepared from Calcination of Lignin for Ethyl Levulinate Synthesis via Ethanolysis of Levulinic Acid, Chemical Engineering Transactions. 97 (2022) 307-312. doi:10.3303/CET2297052.