Mohmad Nasir, I., N. Ameram, A. Ali, M. H. Mohamad Amini, N. I. Ibrahim, and S. R. Hassan. “<sup>29</Sup>Si Solid-State NMR Spectroscopy of Guanine-Modified Rice Husk Silica (RHACGua)”. Malaysian Journal of Bioengineering and Technology, vol. 2, no. 2, June 2025, pp. 54-59, doi:10.70464/mjbet.v2i2.1573.