1. Manning FS, Thompson RE (1991). Oilfield Processing of Petroleum (Volume One:Natural Gas). Pennwell Books. ISBN 0-87814-343-2
2. Medde M The Ph.D. thesis in ingegneria industriale università degli studi di cagliari, “experimental analysis and modelling of gasoil hydrotreatment process”
3. Sadighi S, Seif Mohaddecy SR, Ghabouli O, Bahmani M (2009) Revamp of naphtha hydrotreating process in an iranian refinery. Pet Coal J 51(1):45–50
4. Gheni SA, Jada’a WA (2012) Inhibitory study for joint reactions of hydrodesulphurization and hydrodenitrogenation during hydrotreating of vacuum gas oil. In: Proceedings of the world congress on engineering and computer science 2012, vol II. WCECS, San Francisco, USA
5. Kabe T, Ishihara A, Qian W (1999) Hydrodesulphurization and Hydrodenitrogenation. Kodansha Ltd., Tokyo, WILEY-VCH Verlag GmbH, Weinheim