A Review on Glassy and Rubbery Polymeric Membranes for Natural Gas Purification.Published in:ChemBioEng Reviews, 2021, v. 8, n. 2, p. 90, doi. 10.1002/cben.202100002By:Farnam, Marjan;bin Mukhtar, Hilmi;bin Mohd Shariff, AzmiPublication type:Article