Kurdistan Natural Asphalt as Paving and Mastic Asphalt Compared with Petroleum Base Asphalt. Journal of Zankoy Sulaimani - Part A, [S. l.], v. 2, n. 1, p. 58–69, 1999. DOI: 10.17656/jzs.10029. Disponível em: https://jzs.univsul.edu.iq/index.php/jzs/article/view/jzs-10029.. Acesso em: 5 mar. 2024.