Widyasari, Eka, Supriadi Supriadi, and Irwan Said. 2021. “Adsorption Capacity of Activated Charcoal Made of Rice Husk on Cd(II) Metal Ions”. Jurnal Akademika Kimia 10 (4). Palu, Sulawesi Tengah - INDONESIA:213-17. https://doi.org/10.22487/j24775185.2021.v10.i4.pp213-218.