Kovalenko, O., A. Ageev, and O. Sakara. “Effect of Polypropylene Fiber on the Properties of Sand-Cement Mortars”. Land Reclamation and Water Management 103, no. 1 (May 22, 2016): 93 - 96. Accessed May 5, 2024. http://mivg.iwpim.com.ua/index.php/mivg/article/view/98.