Jha, S., & Verma, R. (2010). Studies on Coordination Behaviour of Co(II), Ni(II) and Cu(II) Complexes of Semicarbazones and Thiosemicarbazones . Asian Journal of Chemistry, 15(3), 1719–1723. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/21890