"Green Synthesis, Structural Clarification, and Spectral Analysis of Schiff Base Ni(II) and Cu(II) Complexes Based on Pyridines with Associated Biological Significance: Schiff base complexes, pyridine ligands, green synthesis, nickel (II), copper (II), and spectral characterization", jar, م 30, عدد 1, ص 01–08, يناير 2026, doi: 10.65540/jar.v30i1.1360.