QAIDI, S. M. A., and Y. S. S. AL-KAMAKI. “STATE-OF-THE-ART REVIEW: CONCRETE MADE OF RECYCLED WASTE PET AS FINE AGGREGATE”. Journal of Duhok University, Vol. 23, no. 2, Jan. 2021, pp. 412-29, https://journal.uod.ac/index.php/uodjournal/article/view/947.