WASET
    W. E. Igwegbe and  B. C. Okoro and  J. C. Osuagwu,  Use of Carica papaya as a Bio-Sorbent for Removal of Heavy Metals in Wastewater.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2015, vol. 108(12). 1410 - 1414
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10003297.