M. ABDULRASOOL, Jinan; T. ALI, Emad; H. TOMMA, Jumbad. New Schiff – Bases Prepared From Pyromellitic Dianhydride Via Its Hydrazide Derivative. Ibn AL-Haitham Journal For Pure and Applied Sciences, Baghdad, Iraq., v. 29, n. 1, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/38. Acesso em: 14 mar. 2025.