Mohammad Jamil Abd AlGhani,  Comparative Study in Evaluating the Antioxidation Efficiency for Native Types Antioxidants Extracted from Crude Oil with the Synthesized Class.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 118(10). 1345 - 1348
    [viewed 21 January 2022]. Available from: https://publications.waset.org/pdf/10005685.