Wassouf, Moustafa. “The Use Of Natural Pozzolana As An Alternative To Portland Cement With Recycled Pebbles For The Manufacture Of Concrete With Environmental Properties”. Latakia University Journal -Engineering Sciences Series 46, no. 5 (February 22, 2025): 215–232. Accessed July 30, 2025. https://journal.latakia-univ.edu.sy/index.php/engscnc/article/view/18156.