Abu Bakar, Nor Hidayah, Faizzul Fikri Idres, Nurul Ayuni Kamri, and Nor Farah Atiqah Ahmad. 2022. “The Efficiency of Waste Materials in Eco - Concrete”. Multidisciplinary Applied Research and Innovation 3 (1): 313-26. https://penerbit.uthm.edu.my/periodicals/index.php/mari/article/view/4164.