Safitri, Sanita Tyas, and Susila Kristianingrum. 2021. “The Decreasing of Copper (Cu) and Lead (Pb) Concentration in Electroplationg Liquid Waste With Coconut Coir Adsorbent”. Indonesian Journal of Chemistry and Environment 3 (2):1-10. https://doi.org/10.21831/ijce.v3i2.43507.