1. ] Huc A, Argillier J-F, Renard G, Quignard A, Alazard N. Heavy Crude Oils; From geology to upgrading, an overview. 2011.
2. The Science and Technology of Unconventional Oils: Finding Refining Opportunities;Ramirez-Corredores,2017
3. C. Ovalles Subsurface Upgrading of Heavy Crude Oils and Bitumen 1 CRC Press Boca Raton : CRC Press, Taylor & Francis Group, 2019.
4. Upgrading Oilsands Bitumen and Heavy Oil;Gray,2015
5. J.G. Speight The Chemistry and Technology of Petroleum 0 CRC Press.