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Zainuddin KR, Mohamad Zainol M, Hassan AH, Asmadi M, Syed Hassan SSA, Yusof MY, Anggoro DD. Effect of Calcination Temperature on Sulfonated Lignin Catalyst Preparation for Glucose Ethanolysis to Ethyl Levulinate. SRJ [Internet]. 2024 Feb. 26 [cited 2024 Dec. 23];21(1):99-116. Available from: https://journal.uitm.edu.my/ojs/index.php/SRJ/article/view/2866