PAUL, MATHEW, and K. KRISHNANKUTTY. 2010. “Synthesis and Characterisation of Co(II), Ni(lI) and Cu(II) Complexes of Some 6-Aryl-5-Bexene-2,4-Diones”. Asian Journal of Chemistry 14 (2):949-56. https://asianpubs.org/index.php/ajchem/article/view/22242.