Rai, B.K., and K.K. Sharma. “Synthesis, Characterization and Antimicrobial Study of Co(II), Ni(II) and Cu(II) Complexes of 2-Phenyl-3-Carboxy Methyl Quinazoline-(3H)-4-Semicarbazone”. Asian Journal of Chemistry, vol. 22, no. 7, June 2010, pp. 5625-30, https://asianpubs.org/index.php/ajchem/article/view/31711.