Synthesis and characterization of ( L- proline ) amino acid with (Mn+2 , Fe+2 , Co+2 , Zn+2 and Cd+2 ). مجلة ديالى للبحوث الانسانية, Iraq, v. 1, n. 42, p. 1–10, 2022. DOI: 10.57592/djhr.v1i42.712. Disponível em: https://djhr.uodiyala.edu.iq/index.php/DJHR2022/article/view/712. Acesso em: 8 2025.