LAHMEK, M., and A.A. RAMADAN. 2010. “Determination of Normal Hydrocarbons C5-C18 Using Silanized Algerian Bentonite (B1100) As Support in Gas Chromatographic Analysis”. Asian Journal of Chemistry 20 (1):66-74. https://asianpubs.org/index.php/ajchem/article/view/19354.