id	keyword
easat-11057	behavior
easat-11057	travel
easat-11057	vol
easat-11057	air
easat-11057	tourism
easat-11057	generation
easat-11057	consumption
easat-11057	air travel
easat-11057	values
easat-11057	vietnam
easat-11057	intention
easat-11057	study
easat-11057	economic
easat-11057	journal
easat-11057	willingness