id	domain	url
elt-28859	journal.unnes.ac.id	http://journal.unnes.ac.id/sju/index.php/elt
elt-28859	www.macrothink.org	http://www.macrothink.org/journal/index.php/ijele/article/viewfile/3892/3180
elt-28859	www.researchgate.net	https://www.researchgate.net/publication/277173037_the_use_of_tongue_twisters_in_efl_teachi