Iwubeh, Jonathan Chikurdi, et al. “Effects of Crude Oil Treatment on the Morphology and Performance of Water Hyacinth (Eichhornia Crassipes (Mart) Solms) in Niger-Delta Region of Nigeria ”. Archives of Agriculture and Environmental Science, vol. 5, no. 2, June 2020, pp. 151-6, doi:10.26832/24566632.2020.0502010.