Shrestha, S.L. 2018. A Comparative Study of Fe (II) Ion Adsorption onto Chemically Activated Banana Peel and Sawdust Bio-adsorbent. International Journal of Applied Sciences and Biotechnology. 6, 2 (Jun. 2018), 137–141. DOI:https://doi.org/10.3126/ijasbt.v6i2.20423.