INVESTIGATION OF COCONUT SHELLS ACTIVATED CARBON AS THE COST EFFECTIVE ABSORBENT IN DRINKING WATER FILTER. Jurnal Teknologi, [S. l.], v. 77, n. 22, 2013. DOI: 10.11113/jt.v77.6656. Disponível em: https://journals.utm.my/jurnalteknologi/article/view/6656.. Acesso em: 23 jul. 2024.