«International Research for the Betterment of Children Worldwide: Early Childhood Education: International Research Report (2015). Editor: Dr. László Varga University of West Hungary, Benedek Elek Faculty of Pedagogy, Sopron, Hungary». Képzés és Gyakorlat : Neveléstudományi folyóirat 13, no. 3-4 (diciembre 20, 2015): 171–175. Accedido marzo 31, 2026. https://journal.uni-mate.hu/index.php/trainingandpractice/article/view/5085.