Dr. Abdulbasit Abdul-Aziz Mahmood, and Zeina Osama Yahiya. “Effects of (SBS) Styrene-ButadieneStyrene on Physical Properties of Bitumen”. Zeta Repository, vol. 20, July 2023, pp. 99-110, https://zetarepo.com/index.php/zr/article/view/2205.