id	domain	url
easat-6327	creativecommons.org	https://creativecommons.org/licenses/by/4.0/)
easat-6327	creativecommons.org	https://creativecommons.org/licenses/by/4.0
easat-6327	doi.org	https://doi.org/10.12691/education-6-6-20
easat-6327	doi.org	https://doi.org/10.25073/2588-1159/vnuer.4260
easat-6327	doi.org	https://doi.org/10.12691/education-6-6-20
easat-6327	doi.org	https://doi.org/10.25073/2588-1159/vnuer.4260