Butani, P., B. Bheshdadia, and K. Ladva. “SYNTHESIS, CHARACTERIZATION 8 BIOLOGICAL EVALUATION OF SOME NOVEL PYRIDO[1,2-A] PYRIMIDIN-4-ONE DERIVATIVES”. Journal of Advanced Scientific Research, Vol. 11, no. 03, Aug. 2020, pp. 225-32, https://sciensage.info/index.php/JASR/article/view/531.