Chemical and Mineralogical Properties of Rice Husk Ash (RHA). Jurnal Teknologi (Sciences & Engineering), [S. l.], v. 70, n. 5, 2014. DOI: 10.11113/jt.v70.3508. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/3508.. Acesso em: 27 sep. 2024.