. O. B. . Ovonramwen, “Synthesis of 1-(2,4-Dinitrophenyl)-3,5-diphenyl-1H-pyrazol-4-ol via trans-1,3-Diphenyl-2,3-epoxy-1-propanone”, Tanz. J. Sci., vol. 47, no. 3, pp. 1243–1251, Aug. 2021.