“Removal of Cadmium Ions from Synthetic Wastewater by Using Pennisetum Purpureum (Elephant Grass) As Low Cost Biodegradable Adsorbent (Biosorbent)”. 2019. Universiti Malaysia Terengganu Journal of Undergraduate Research 1 (1): 103-12. https://doi.org/10.46754/umtjur.v1i1.56.