அசுபால்ட்டு (Tamil Wikipedia)

Analysis of information sources in references of the Wikipedia article "அசுபால்ட்டு" in Tamil language version.

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archive.org (Global: 6^th place; Tamil: 8^th place)

Abraham, Herbert (1938). Asphalts and Allied Substances: Their Occurrence, Modes of Production, Uses in the Arts, and Methods of Testing (4th ed.). New York: D. Van Nostrand Co. Retrieved 2009-11-16. Full text at Internet Archive (archive.org)

"Oil Sands - Glossary". Oil Sands Royalty Guidelines. Government of Alberta. 2008. Archived from the original on 2007-11-01. Retrieved 2008-02-02.

Walker, Ian C. (1998), Marketing Challenges for Canadian Bitumen (PDF), Tulsa, OK: International Centre for Heavy Hydrocarbons, archived from the original (pdf) on 2012-03-13, retrieved 2013-05-03, Bitumen has been defined by various sources as crude oil with a dynamic viscosity at reservoir conditions of more than 10,000 centipoise. Canadian "bitumen" supply is more loosely accepted as production from the Athabasca, Wabasca, Peace River and Cold Lake oil-sands deposits. The majority of the oil produced from these deposits has an API gravity of between 8° and 12° and a reservoir viscosity of over 10,000 centipoise although small volumes have higher API gravities and lower viscosities.

"Oil Sands - Glossary". Oil Sands Royalty Guidelines. Government of Alberta. 2008. Archived from the original on 2007-11-01. Retrieved 2008-02-02.
Walker, Ian C. (1998), Marketing Challenges for Canadian Bitumen (PDF), Tulsa, OK: International Centre for Heavy Hydrocarbons, archived from the original (pdf) on 2012-03-13, retrieved 2013-05-03, Bitumen has been defined by various sources as crude oil with a dynamic viscosity at reservoir conditions of more than 10,000 centipoise. Canadian "bitumen" supply is more loosely accepted as production from the Athabasca, Wabasca, Peace River and Cold Lake oil-sands deposits. The majority of the oil produced from these deposits has an API gravity of between 8° and 12° and a reservoir viscosity of over 10,000 centipoise although small volumes have higher API gravities and lower viscosities.