S.M. Nasman, O., M. Baraka, R., & M. Abdul Aziz, H. (2010). Self Condensation Reaction of Thiosalicylic Acid in the Presence of Some Transition Metal Ions. Asian Journal of Chemistry, 16(1), 27–32. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/19528