Aresh Vikram Singh and  Sarika Nagar,  Synthesis and Application of Tamarind Hydroxypropane Sulphonic Acid Resin for Removal of Heavy Metal Ions from Industrial Wastewater.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2017, vol. 121(1). 60 - 63
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10006610.