SWAMI, V.K., and S.P. MATHUR. 2010. “Synthesis, Spectral Studies and Antibacterial Activity of Rare-Earth Metal Complexes With 1-Hydroxy-1-Phenyl. 3-Allyl-2-Thiourea”. Asian Journal of Chemistry 6 (4):1073-74. https://asianpubs.org/index.php/ajchem/article/view/24726.