Fahim, A.M., et al. “Regioselective Synthesis and DFT Study of Novel Fused Heterocyclic Utilizing Thermal Heating and Microwave Irradiation”. Afinidad. Journal of Chemical Engineering Theoretical and Applied Chemistry, vol. 75, no. 582, June 2018, https://raco.cat/index.php/afinidad/article/view/338237.