Afiqah Mohamd Tahir, Nurul, Hafizan Juahir, Mohamad Pauzi Zakaria, Sharifuddin Md Zain, Ananthy Retnam, Tan Sin Sing, Norazida Manan, et al. 2018. “Environmental Forensic Techniques in Identifying the Sources of 16 USEPA Priority Pollutants Polycyclic Aromatic Hydrocarbons (PAHs) at the Langat River, Selangor, Malaysia”. International Journal of Engineering & Technology 7 (3.14): 123-31. https://doi.org/10.14419/ijet.v7i3.14.16872.