M. Ali, H., A. Rasool, R., & Y. Moustafa, S. (2025). Reinforcement Effect of Alumina and Silica on the Mechanical Properties of Mixture Polyesters (Unsaturated Polyester / Polyurethane). Rafidain Journal of Science, 29(2), 51–63. https://doi.org/10.33899/rjs.2020.165365