Panicker, C. Y., Varghese, H. T., George, A., & Thomas, P. K. V. (2010). FT-IR, FT-Raman and ab-initio studies of 1,3-diphenyl thiourea. European Journal of Chemistry, 1(3), 173–178. https://doi.org/10.5155/eurjchem.1.3.173-178.42