Singh, Niraj Kumar, and Baboo Rai. “A Statistical Study to Investigate the Efficiency of Steel and Polypropylene Fiber in Enhancing the Durability Properties of Concrete Composites”. Civil Engineering Journal 4, no. 6 (July 4, 2018): 1254–1272. Accessed January 2, 2026. https://www.civilejournal.org/index.php/cej/article/view/860.