Nguyen, H., N. Huynh, and P. Tran. “Multi-Component Reaction Between Aromatic Aldehyde, Ethyl Acetoacetate and Urea Catalyzed by Brönsted Ionic Liquid under Microwave Irradiation”. Science & Technology Development Journal: Natural Sciences, Vol. 2, no. 3, May 2019, pp. 68-77, doi:https://doi.org/10.32508/stdjns.v2i3.755.