WASET
    M. Abdullahi and  S. Sadiku and  Bashar S. Mohammed and  J. I. Aguwa,  Quality Assessment of Hollow Sandcrete Blocks in Minna, Nigeria.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2015, vol. 106(10). 1288 - 1292
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10002355.