Zulfiyakhan, K. . (2022) “The Importance of the Pirls International Assessment Program in the Educational System of Uzbekistan”, European Journal of Life Safety and Stability (2660-9630), 15, pp. 292-293. Beschikbaar op: http://www.ejlss.indexedresearch.org/index.php/ejlss/article/view/541 (Geraadpleegd: 6oktober2025).