“Preparation, Characterization and Biological Studies of New Tetra-Dentate N4  Schiff Base Derived from Malonic Acid Dihydrazide With Mn+2 and Co+2 Complexes”. 2024. Ibn AL-Haitham Journal For Pure and Applied Sciences 37 (2): 270-82. https://doi.org/10.30526/37.2.3304.