id	domain	url
issue-379	doi.org	https://doi.org/10.30525/2256-0742/2018-4-2-47-52
issue-379	www.ilo.org....	http://www.ilo.org....)
issue-379	pum.princeton.edu	http://pum.princeton.edu/pumcomference/papers/1-massey.pdf
issue-379	www.cedos.org.ua	http://www.cedos.org.ua/uk/osvita/56