M. ALI, H.; A. RASOOL, R.; Y. MOUSTAFA, S. Reinforcement Effect of Alumina and Silica on the Mechanical Properties of Mixture Polyesters (Unsaturated Polyester / Polyurethane). Rafidain Journal of Science, [S. l.], v. 29, n. 2, p. 51–63, 2025. DOI: 10.33899/rjs.2020.165365. Disponível em: https://rjps.uomosul.edu.iq/index.php/rsci/article/view/12684. Acesso em: 6 aug. 2025.