Mohamed Daood, Daad, and Dr.Nadia Salim Esmaeil. “Processing Lightweight Aggregate to Produce Lightweight Concrete”. Al-Rafidain Engineering Journal (AREJ) 18, no. 6 (December 1, 2010): 10–23. Accessed October 2, 2025. https://jcis.uomosul.edu.iq/index.php/arej/article/view/31225.