id	keyword
ertr-681	learning
ertr-681	tourism
ertr-681	education
ertr-681	learners
ertr-681	needs
ertr-681	research
ertr-681	tourism e
ertr-681	programs
ertr-681	development
ertr-681	tourism research
ertr-681	use
ertr-681	review
ertr-681	et al
ertr-681	vol
ertr-681	ertr