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Smith, Cory. "Petrochemicals". American Fuel & Petrochemical Manufacturers. Archived from the original on 11 September 2021. Retrieved 18 December 2016.
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Seager, Spencer L.; Slabaugh, Michael R. (2004). Chemistry for Today: General, Organic, and Biochemistry. Thomson Brooks/Cole. p. 342. ISBN978-0-534-39969-6. கணினி நூலகம்155910842.