Mohamed Yusof, M. K. T., Sharipudin, S. S. ., Mohammad, S. N. ., Roslan, A., Michael, Z., Shahrul Azhar, I. I. . and 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 Sciences (SREES), 31(1), pp. 3–13. doi: 10.22630/srees.2314.