A. Mutar, Mohammed. ā€œA Study of Synthesis and Characterization of New Aromatic Poly(amide-imide)sā€. Ibn AL-Haitham Journal For Pure and Applied Sciences 28, no. 1 (March 16, 2017): 73ā€“87. Accessed March 29, 2025. https://jih.uobaghdad.edu.iq/index.php/j/article/view/191.