AZHAR SHIDDIQ, M.; PUDJIHASTUTI, I. Making Silica Gel by Utilizing Candlenut and Palm Oil Shell Ash. Eduvest - Journal of Universal Studies, [S. l.], v. 1, n. 3, p. 133–141, 2021. DOI: 10.59188/eduvest.v1i3.24. Disponível em: http://www.eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/24. Acesso em: 5 jul. 2025.