Anwar, A., Hameed, A., Perveen, S., Uroos, M., Choudhary, M. I., & Basha, F. Z. (2014). 1,1-Diphenyl-2-picrylhydrazyl radical scavenging activity of novel dihydropyridine derivatives. European Journal of Chemistry, 5(1), 189–191. https://doi.org/10.5155/eurjchem.5.1.189-191.916