Ahmed, Abubakar Abdullahi, et al. “Synthesis, Characterization and Antimicrobial Evaluation of Schiff Base Ligands Derived from Ampicillin and Their Metal (II) Complexes”. FUDMA Journal of Sciences, vol. 10, no. 14, Aug. 2026, pp. 114-22, https://doi.org/10.33003/fjs-2026-1014-5618.