Serrao, Reena Saritha, S.Z. Mohamed Shamshuddin, and Joyce D’souza. “Catalytic Synthesis of Levulinate Esters over Zirconia and Its Modified Forms Coated on Honeycomb Monoliths: Green Synthesis”. Asian Journal of Chemistry 31, no. 9 (July 31, 2019): 1993–1999. Accessed November 25, 2024. https://asianpubs.org/index.php/ajchem/article/view/31_9_17.