id	domain	url
educationr-3879	doi.org	https://doi.org/10.14507/er.v31.3879
educationr-3879	doi.org	https://doi.org/10.14507/er.v31.3879
educationr-3879	www.bgcenter.com	www.bgcenter.com
educationr-3879	creativecommons.org	https://creativecommons.org/licenses/by-sa/4.0/
educationr-3879	www.bgcenter.com	http://www.bgcenter.com
educationr-3879	creativecommons.org	https://creativecommons.org/licenses/by-sa/4.0