Mohamed Yusof, M. K. T., Sharipudin, S. S. ., Mohammad, S. N. ., Roslan, A., Michael, Z., Shahrul Azhar, I. I. ., & Zainal Abidin, N. A. . (2022). Feasibility study of palm oil boiler ash (POBA) as a partial replacement of sand in foamed concrete . Scientific Review Engineering and Environmental Studies (SREES), 31(1), 3–13. https://doi.org/10.22630/srees.2314