SALEEM, Mhmood Khleel; HAMDOON, Ammar Ahmed; OWAID, Khalid Ahmed. The Effect of adding petroleum resins C9 and C5 on the properties of Qayyarah asphalt. NTU Journal of Pure Sciences, [S. l.], v. 5, n. 1, p. 44–56, 2026. DOI: 10.56286/h64dhy69. Disponível em: https://journals.ntu.edu.iq/index.php/NTU-JPS/article/view/1380.. Acesso em: 15 apr. 2026.