Bari, M. A., M. I. Hossain, and M. A. J. Miah. 2009. “Synthesis of Acryclic Acid Ethyl Ester from Aldehydes Catalyzed by Copper Triflates”. Journal of Scientific Research 1 (3):635-40. https://doi.org/10.3329/jsr.v1i3.2473.