ZUPANČIČ, Monika, 2022, John Hattie, Douglas Fisher and Nancy Frey, VisibleLearning for Mathematics: Grades K-12: What WorksBest to Optimize Student Learning, Corwin Mathematics:2017; 269 pp.: ISBN: 9781506362946. [na spletu]. 2022. Vol. 12, p. 241–246. [Dostopano 11 april 2025]. Pridobljeno s: http://pefprints.pef.uni-lj.si/7161/