id	keyword
hassl-3571	service
hassl-3571	quality
hassl-3571	service quality
hassl-3571	advantage
hassl-3571	hotel
hassl-3571	sca
hassl-3571	study
hassl-3571	managers
hassl-3571	journal
hassl-3571	kurdistan
hassl-3571	industry
hassl-3571	tourism
hassl-3571	region
hassl-3571	research
hassl-3571	management
hassl-3571	reliability