Venkat Rao, S., et al. “Synthesis of Biologically Active and Novel Antifungal Agents Like Substituted Hetero Aryl Amines of Dihydro Imidazo[1,2-a]pyridine Derivatives”. Asian Journal of Chemistry, vol. 24, no. 7, Mar. 2012, pp. 3203-5, https://asianpubs.org/index.php/ajchem/article/view/9329.