Education at a Glance 2019 : OECD Indicators. Paris : OECD, 2019. 493 s. Available on Internet: <https://www.oecd-ilibrary.org/education/education-at-a-glance-2019_f8d7880d-en> ISBN 978-92-64-80398-5. ISSN 1563-051X. [Copy count : 1, currently available 0, at library only 1]