P. Senthilkumar, et al. “Characterisation of Waste Plastic Oil by Fourier Transform Infrared Spectroscopy and Gas Chromatography-Mass Spectrometry”. Journal of Science & Technology (JST), vol. 7, no. 2, Apr. 2022, pp. 270-8, doi:10.46243/jst.2022.v7.i02.pp270-280.