samik, samik, Nita Kusumawati, Maria Monica Sianita, Dina Kartika Maharani, Amalia Putri Purnamasari, Mukhlash Imaduddin, and M Iqbal Al Ghifari. 2023. “Rice Husk Ash Characterization Using XRD”. Unesa Journal of Chemistry 11 (3):153-59. https://doi.org/10.26740/ujc.v11n3.p153-159.