Aziz Ramadan, Abdul, Saad Antakli, and Riad Zahlani. 2010. “Gas Chromatographic Analysis Using Grafted Chromosorb G by Thionyl Chloride And Grignard Reagent”. Asian Journal of Chemistry 22 (4):3267-74. https://asianpubs.org/index.php/ajchem/article/view/11541.