Saini, Komal, and Rajshree Rathore. 2018. “Differentiation of Red and Black Ballpoint Pen Inks Using High Performance Thin Layer Chromatography and Gas Chromatography-Mass Spectrometry”. Arab Journal of Forensic Sciences & Forensic Medicine 1 (7). https://doi.org/10.26735/16586794.2018.011.