Karbon Teraktif Daripada Ubi Kayu. Jurnal Teknologi, [S. l.], v. 21, n. 1, p. 57–64, 1993. DOI: 10.11113/jt.v21.1072. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/1072.. Acesso em: 23 jul. 2024.