@article{habeeb_mahmud_2010,  title={Study on properties of rice husk ash and its use as cement replacement material},  volume={13},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392010000200011},  DOI={10.1590/S1516-14392010000200011},  number={2},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Habeeb, Ghassan Abood and Mahmud, Hilmi Bin},  year={2010},  month={Apr},  pages={185–190} }