Reforming ISSSTESON’s Public Procurement for Sustainability. Paris : OECD, 2019. 163 s. OECD Public Governance Reviews. Dostupné na : <https://www.oecd-ilibrary.org/governance/reforming-isssteson-s-public-procurement-for-sustainability_a6ee30a8-en> ISBN 978-92-64-34630-7.