Hendri, Y. B., Nazar, A., Arianty, G., Febryza, D., Miran, H. A., Jaf, Z. N., … Amri, A. (2026). Synergistic effects of low-cost graphene and coal fly ash on the strength–porosity performance of cellular lightweight concrete. SINERGI, 30(3), 1023–1036. https://doi.org/10.22441/sinergi.2026.3.025