Nada Hamad Khalaf, Yasir Khalil Ibrahim, and Sahib Mohammed Mahdi. “Studying the Effect of Adding Different Lengths of Glass Fibers on Some Properties of Mortar”. Eurasian Journal of Engineering and Technology, vol. 11, Oct. 2022, pp. 49-56, https://geniusjournals.org/index.php/ejet/article/view/2334.