Equations and inequalities : making mathematics accessible to all. Paris : OECD, 2016. 220 s. PISA. Dostupné na : <http://www.oecd-ilibrary.org/education/equations-and-inequalities_9789264258495-en> ISBN 978-92-64-25848-8. [Počet ex. : 1, z toho voľných 1, prezenčne 0]