S. P. YAP, U. J. ALENGARAM, M. Z. JUMAAT, and K. Y. FOONG. “Waste Materials in Malaysia for Development of Sustainable Concrete: A Review”. Electronic Journal of Structural Engineering 13, no. 2 (June 1, 2013): 60–64. Accessed November 23, 2024. https://ejsei.com/EJSE/article/view/174.