Afolabi, E. O., F. M. Agwom, and J. T. Kindala. “Synthesis and Characterization of Two New Carboxamides: N-Prop- 2-Ynylacrylamide and N-(prop-2-ynyl)but-2-Enamide”. Journal of Pharmacy & Bioresources, vol. 14, no. 2, June 2018, pp. 279-82, doi:10.4314/jpb.v14i2.23.