Alzurfi, S. K. L., Alasedi, K. K., & Abdulraheem, N. I. (2019). Effect Different Concentrations of Crude Oil on the Pigment Content and Protein Content of Hydrilla Verticillata Plant. Iraqi Journal of Science, 60(10), 2141-2148. https://doi.org/10.24996/ijs.2019.60.10.6