Abdul Rahim Yacob and  Mohamad Raizul Zinalibdin,  High Performance Liquid Chromatography Determination of Urinary Hippuric Acid and Benzoic Acid as Indices for Glue Sniffer Urine.   journal   = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2010, vol. 38(2). 237 - 242
    [viewed 20 October 2019]. Available from: https://publications.waset.org/pdf/7928.