Dije Dehari and  Ahmed Jashari and  Shefket Dehari and  Agim Shabani,  New Complexes of Nickel (II) Using  4-Hydroxy-2-Oxo-2H-Chromene-3-Carboxamide as Ligand.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2012, vol. 67(7). 641 - 644
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/16900.