Asri, M.N.M., Desa, W.N.S.M. and Ismail, D. 2015. Fourier Transform Infrared (FTIR) Spectroscopy with Chemometric Techniques for the Classification of Ballpoint Pen Inks. Arab Journal of Forensic Sciences & Forensic Medicine . 1, 2 (Dec. 2015). DOI:https://doi.org/10.12816/0017699.