“Influence of Hybrid Steel –Polypropylene Fibers on the Mechanical Properties of Normal Concrete”.
University of Thi-Qar Journal for Engineering Sciences 13, no. 1 (December 1, 2023): 34–39. Accessed June 15, 2025.
http://mail.jeng.utq.edu.iq/index.php/main/article/view/500.